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Found 98 results

  1. Bone ID? Upper Cretaceous

    Hello again, I've posted this fossil before on here a couple weeks back, but I did some more uncovering of the fossil and made a few additions from rock fragments I found surrounding the fossil, so it is more complete now. It is from the fox hills formation in South Dakota, with the depositional environment being lagoonal. Professional papers collecting samples from this formation list shark teeth, mosasaur teeth, bivalves, as well as dinosaur bone fragments being found here. I think we can safely rule out bivalves though haha. The brown end of the fossil looks to be a jointed end of the bone. The black "fracture" above my thumb in the first pic looks like a bone suture, something that occurs only in skulls of vertebrates. I'm no expert on sutures but this "crack" looks like it didn't occur after death of the animal. I haven't had this theory confirmed though. Thanks again!
  2. A new paper regarding a new hadrosaurid from the eastern US is available online: Albert Prieto-Marquez, Gregory M. Erickson and Jun A. Ebersole (2016). "A primitive hadrosaurid from southeastern North America and the origin and early evolution of ‘duck-billed’ dinosaurs". Journal of Vertebrate Paleontology. Online edition: e1054495. doi:10.1080/02724634.2015.1054495. It's no surprise that we have been deciphering the evolution of hadrosauroids and hadrosaurids in North America during the late Turonian to Santonian interval, but the discovery of Eotrachodon provides new insights into the early evolution of hadrosaurids in North America by showing that hadrosaurids co-existed with non-hadrosaurid hadrosauroids in North America during the Santonian. However, the statement by Prieto-Marquez et al. regarding the geographical origin of Hadrosauridae should be taken with a grain of salt because Sebastian Dalman informed me of a soon-to-be-published tyrannosaur species from the Cenomanian of New Jersey and it's possible that a small number of Cenomanian-Turonian species from Asia currently classified as Hadrosauroidea incertae sedis could end up as basal hadrosaurids, in which case it may be clear that hadrosaurids in Laramidia made it to Appalachia during the Cenomanian before the Western Interior Seaway cut off Appalachia from Laramidia.
  3. Fossil ID Hadrosaur Bone?

    Hello, I found a fossil in the fox hills formation (Upper Cretaceous) around 6 miles east of Timber Lake, SD. I believe it is part of a dinosaur bone, or atleast a large vertebrate and was wondering if there was enough of the sample for a positive ID. The area in which I found it in is known to be a lagoonal deposition environment and I found the fossil in a thick bed of bivalves. Mosasaurs have been found in the formation but I'm not sure that this bone belongs to one of those. I tried to mostly clean it off, but there is still some encrustation.
  4. 2015 afforded to the opportunity to add some very nice new Cretaceous items to my collection from here in North Carolina. North Carolina offers several different formations of Cretaceous goodies. The Black Creek Group includes the Tarheel, Bladen and Donoho Creek Formations, all Campanian. Then of course there is the PeeDee, deposited during the Maastrichtian. This post will be photo heavy so it will take several posts from me to get everything in. First some of the Echinoids. These two Hardounia mortonis came from a sand pit in Pender County and are from the PeeDee Formation. Note that there are spines on both sides of these. Many of the echinoids from this location are exceptionally preserved. Next are Schizaster variabilis. These are the first 3 of this species that I have found, so they were welcome additions, also from the PeeDee Formation. One of these came from a location on the North East Cape Fear river, the others from the Brunswick River.
  5. Maastricht Natural History Museum Mosasaur central This charming little museum in a historic city is absolutely worth a visit if you have any interest in the latest Cretaceous and Mosasaurs. The city of Maastricht was founded by the ancient Romans along the Meuse (Mosa in Latin, Maas in Dutch) river. The animals we know as Mosasaurs are named after this river. The great lizard of the Meuse. Near the city are deposits of the latest Cretaceous, the Maastrichtian, which is named after the city. There are several quarries that produce a lot of fossils. In the same procince to the north of Maastricht there is another fossil location that lends it's name to a geologic age. The tiglien, which is during the lower Pleistocene, named after Tegelen. Part of the old roman city wall nearby. This museum also used to house the holotype of the original Mosasaur. Mosasaurus hoffmanni. Sadly it was taken as the spoils of war by Napoleon's army. Today the holotype is located in the Paris Museum of Natural History. So now there is only a cast of the holotype in the museum. This small glass enclosed area in the garden houses the holotype of Prognathodon saturator which is nicknamed Bér. The specimen consists of an mostly complete skull and a partial skeleton and was found near Maastricht. There are a number of articulated thoracic vertebrae, some limb elements and some other loose elements. Along with the mosasaur skeleton there were a lot of shark teeth (Squalicorax and others) found associated with it that suggests that the carcass was scavenged by sharks and other opportunists before being covered. I suggest viewing this on a cloudy day because the reflections on the glass can sometimes make it hard to see as well. Though the main attractions are the Cretaceous and Pleistocene fossils. There are also a few other cool things. An early relative of the Horseshoe Crab. A primitive spider.
  6. Dinosaur Teeth

    Hey guys, I'm new to the forum and wanted to share a few Dinosaur teeth I have and see what you guys think of them. Thanks for looking!
  7. Small Hadrosaurid egg

    From the album Dinosaur Eggs

    A mysterious dinosaur egg from the late Cretaceous of China. Supposedly a small hadrosaurid, but still lacking a proper ID.
  8. Hadrosaur Embryo

    Hey guys! This is a picture I drew of a fossil hadrosaur in its egg. I used pen to draw and Photoshop to give it some color. If anyone ever needs a paleontology illustration I'd probably do it for fun. Cheers! Lauren
  9. Nj Hadrosaur Jaw Fragment?

    Hey everyone. I went to Ramanessin brook today and found this. It is definitely bone and I believe it is a piece of a hadrosaur jaw. I'd love to know what you all think. Thank you!
  10. Hey guys, Here's another weird hadrosaur egg from the same chain of dealers on eBay who's authenticity I questioned previously.. Never seen a white one before! What do you think? Kind regards, Lauren
  11. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since January 1, 2018. Order Ornithischia - The 'Bird-Hipped' Dinosaurs † Suborder Ornithopoda Clade Hadrosauriformes Superfamily Hadrosauroidea Ramirez-Velasco, A.A., et al. (2016). Spinal and rib osteopathy in Huehuecanauhltus tiquichensis (Ornithopoda: Hadrosauroidea) from the Late Cretaceous in Mexico. Historical Biology, 2016. Xu, S.-C., et al. (2016). A new hadrosauroid dinosaur from the Late Cretaceous of Tianzhen, Shanxi Province, China. Vertebrata PalAsiatica, 54(1). Basal Hadrosauroidea Arkhangelsky, M.S. and A.O. Averianov (2003). On the Find of a Primitive Hadrosauroid Dinosaur (Ornithischia, Hadrosauroidea) in the Cretaceous of the Belogrod Region. Paleontological Journal, Vol.37, Number 1. Barrett, P.M., et al. (2009). Cranial anatomy of the iguanodontoid ornithopod Jinzhousaurus yangi from the Lower Cretaceous Yixian Formation of China. Acta Paleontologica Polonica, 54(1). Dalla Vecchia, F.M.(2009). Telmatosaurus and Other Hadrosauroids of the Cretaceous European Archipelago. An Update. Natura Nascosta, Number 39. Gilpin, D., T. DiCroce and K. Carpenter (2006). 5. A Possible New Basal Hadrosaur from the Lower Cretaceous Cedar Mountain Formation of Eastern Utah. In: Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Carpenter, K. (ed.), Indiana University Press, Bloomington. Godefroit, P., et al. (2012). A new basal hadrosauroid dinosaur from the Upper Cretaceous of Kazakhstan. In: Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems. Godefroit, P. (ed.), Indiana University Press, Bloomington. Grigorescu, D. and Z. Csiki(2006). Ontogenetic development of Telmatosaurus transsylvanicus (Ornithischia: Hadrosauria) from the Maastrichtian of the Hateg Basin, Romania - evidence from the limb bones. Hantkeniana, 5. McDonald, A.T., et al. (2012). Osteology of the Basal Hadrosauroid Eolambia caroljonesa (Dinosauria: Ornithopoda) from the Cedar Mountain Formation of Utah. PLoS ONE, 7(10). Prieto-Marquez, A. and M. Norell (2010). Anatomy and Relationships of Gilmoreosaurus mongoliensis from the Late Cretaceous of Central Asia. American Museum Novitates, Number 3694. Shibata, M. and Y. Azuma (2015). New basal hadrosauroid (Dinosauria: Ornithopoda) from the Lower Cretaceous Kitadani Formation, Fukui, central Japan. Zootaxa, 3914(4). Sues, H.-D. and A. Averianov (2009). A new basal hadrosauroid dinosaur from the Late Cretaceous of Uzbekistan and the early radiation of duck-billed dinosaurs. Proc.R.Soc. B, 276. Wang, R.-F., et al. (2015). A second hadrosauroid dinosaur from the early Late Cretaceous of Zuoyun, Shanxi Province, China. Historical Biology, 2015. Wang, R.-F., et al. (2013). A New Hadrosauroid Dinosaur from the Early Late Cretaceous of Shanxi Province, China. PLoS ONE, 8(10). Weishampel, D.B., D.B. Norman, and D. Grigorescu (1993). Telmatosaurus transsylvanicus from the Late Cretaceous of Romania: The Most Basal Hadrosaurid Dinosaur. Palaontology, Vol.36, Part 2. Xing, H., et al. (2014). A New Basal Hadrosauroid Dinosaur (Dinosauria: Ornithopoda) with Transitional Features from the Late Cretaceous of Henan Province, China. PLoS ONE, 9(6). You, H.-l., et al. (2003). The earliest-known duck-billed dinosaur from deposits of late Early Cretaceous age in northwest China and hadrosaur evolution. Cretaceous Research, 24. Family Hadrosauridae - Duck-billed Dinosaurs Subfamily Hadrosaurinae - Non-crested/Solid-crested Hadrosaurs Freedman Fowler, E.A. and J.R. Horner (2015). A New Brachylophosaurin Hadrosaur (Dinosauria: Ornithischia) with an Intermediate Nasal Crest from the Campanian Judith River Formation of Northcentral Montana. PLoS ONE, 10(11). Gates, T.A., et al. (2011). New Unadorned Hadrosaurine Hadrosaurid (Dinosauria, Ornithopoda) from the Campanian of North America. Journal of Vertebrate Paleontology, 31(4). Kirkland, J.I., et al. (2006). Large Hadrosaurine Dinosaurs from the Latest Campanian of Coahuila, Mexico. In: Late Cretaceous vertebrates from the Western Interior. Lucas, S.G. and R.M. Sullivan (eds.), New Mexico Museum of Natural History and Science, Bulletin 35. Prieto-Marquez, A., D.B. Weishampel, and J.R. Horner (2006). The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus. Acta Palaeontologica Polonica, 51(1). Zheng, R., A.A. Farke and G.-S. Kim (2011). A Photographic Atlas of the Pes from a Hadrosaurine Hadrosaurid Dinosaur. PalArch's Journal of Vertebrate Palaeontology, 8(7). Subfamily incertae sedis Prieto-Marquez, A., G.M. Erickson and J.A. Ebersole (2016). A Primitive Hadrosaurid from Southeastern North America and the Origin and Early Evolution of 'Duck-Billed' Dinosaurs. Journal of Vertebrate Paleontology, e1054495. Prieto-Marquez, A., G.M. Erickson and J.A. Ebersole (2016). Anatomy and Osteohistology of the basal hadrosaurid dinosaur Eotrachodon from the uppermost Santonian (Cretaceous) of southern appalachia. PeerJ, 4:e1872. Subfamily Lambeosaurinae - Crested Hadrosaurs Tribe Aralosaurini Godefroit, P., V. Alifanov and Y. Bolotsky (2004). A re-appraisal of Aralosaurus tubiferus (Dinosauria, Hadrosauridae) from the Late Cretaceous of Kazakhstan. Bulletin De L'Institut Royal Des Sciences Naturelles De Belgique - Sciences De La Terre, 74-Suppl. Prieto-Marquez, A., et al. (2013). Diversity, Relationships, and Biogeography of the Lambeosaurine Dinosaurs from the European Archipelago, with Description of the New Aralosaurin Canardia garonnensis. PLos ONE, 8(7). Tribe incertae sedis Bell, P.R. and K.S. Brink (2013). Kazaklambia convincens comb.nov., a primitive juvenile lambeosaurine from the Santonian of Kazakhstan. Cretaceous Research, xxx. (Article in press) Gates, T.A., et al. (2014). 9. New Hadrosaurid (Dinosauria, Ornithopoda) Specimens from the Lower-Middle Campanian Wahweap Formation of Southern Utah. In: Hadrosaurs. Eberth, D. (ed.), Indiana University Press, Bloomington. Tribe Lambeosaurini Brown, B. (1916). Corythosaurus casuarius: Skeleton, Musculature and Epidermis (Second Paper). Bulletin American Museum of Natural History, Vol.XXXV, Article XXXVIII. Brown, B. (1916). Corythosaurus casuarius, a New Crested Dinosaur from the Belly River Cretaceous, with Provisional Classification of the Family Trachodontidae. Bulletin American Museum of Natural History, Vol.XXXIII, Article XXXV. Cruzado-Caballero, P., et al. (2015). Paleoneuroanatomy of the European lambeosaurine dinosaur Arenysaurus ardevoli. PeerJ 3:e802. Gates, T.L., et al. (2007). Velafrons coahuilensis, A New Lambeosaurine Hadrosaurid (Dinosauria: Ornithopoda) from the Late Campanian Cerro Del Pueblo Formation, Coahuila, Mexico. Journal of Vertebrate Paleontology, 27(4). Godefroit, P., Y.L. Bolotsky and I.Y. Bolotsky (2012). Osteology and relationships of Olorotitan arharensis, a hollow-crested hadrosaurid dinosaur from the latest Cretaceous of Far Eastern Russia. Acta Palaeontologica Polonica, 57(3). Godefroit, P., Y.L. Bolotsky and J. Van Itterbeek (2004). The lambeosaurine dinosaur Amurosaurus raibinini, from the Maastrichtian of Far Eastern Russia. Acta Palaeontologica Polonica, 49(4). Godefroit, P., Y.L. Bolotsky, and V. Alifanov (2003). A remarkable hollow-crested hadrosaur from Russia: an Asian origin for lambeosaurines. C.R. Palevol, 2. Lauters, P., et al. (2013). Cranial Endocast of the Lambeosaurine Hadrosaurid Amurosaurus raibinini from the Amur Region, Russia. PLoS ONE, 8(11). Pereda-Superbiola, X., et al. (2009). The last hadrosaurid dinosaurs of Europe: A new lambeosaurine from the Uppermost Cretaceous of Aren (Huesca, Spain). C.R. Palevol, 8. Prieto-Marquez, A., L.M. Chiappe and S.H. Joshi (2012). The Lambeosaurine Dinosaur Magnipaulia laticaudus from the Late Cretaceous of Baja California, Northwestern Mexico. PLoS ONE, 7(6). Sullivan, R.M., et al. (2011). The First Lambeosaurin (Dinosauria, Hadrosauridae, Lambeosaurinae) from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico. In: Fossil Record 3, Sullivan,R.M., et al. (eds.). New Mexico Museum of Natural History and Science, Bulletin 53. Suzuki, D., D.B. Weishampel and N. Minoura (2004). Nipponosaurus sachalinensis (Dinosauria; Ornithopoda): Anatomy and Systematic Position Within Hadrosauridae. Journal of Vertebrate Paleontology, 24(1). Tribe Parasaurolophini Farke, A.A., et al. (2013). Ontogeny in the tube-crested dinosaur Parasaurolophus (Hadrosauridae) and heterochrony in hadrosaurids. PeerJ, 1:e182. Sullivan, R.M., S.G. Lucas and S.E. Jasinski (2011). The Humerus of a Hatchling Lambeosaurine (Dinosauria: Hadrosauridae) Referable to CF. Parasaurolophus tubicen from the Upper Cretaceous Kirtland Formation (De-Na-Zin Member), San Juan Basin, New Mexico. In: Fossil Record 3, Sullivan,R.M., et al. (eds.). New Mexico Museum of Natural History and Science, Bulletin 53. Sullivan, R.M. and G.E. Bennett (2000). A Juvenile Parasaurolophus (Ornithischia: Hadrosauridae) from the Upper Cretaceous Fruitland Formation of New Mexico. In: Dinosaurs of New Mexico. Lucas, S.G. and A.B. Heckert (eds.), New Mexico Museum of Natural History and Science, Bulletin Number 17. Tribe Tsintaosaurini Prieto-Marquez, A. and J.R. Wagner (2013). The 'Unicorn' Dinosaur That Wasn't: A New Reconstruction of the Crest of Tsintaosaurus and the Early Evolution of the Lambeosaurine Crest and Rostrum. PLoS ONE, 8(11). Prieto-Marquez, A. and J.R. Wagner (2009). Pararhabdodon isonensis and Tsintaosaurus spinorhinus: a new clade of lambeosaurine hadrosaurids from Eurasia. Cretaceous Research, 30. Prieto-Marquez, A., et al. (2006). Hadrosaurid Dinosaurs from the Late Cretaceous of Spain: Pararhabdodon isonensis Revisited and Koutalisaurus kohlerorum, Gen. et Sp.Nov. Journal of Vertebrate Paleontology, 26(4). General Lambeosaurinae Cruzado-Caballero, P., et al. (2011). The Complex Fauna of European Maastrichtian Hadrosaurids: Contributions of the Lambeosaurines from the Iberian Peninsula. Evans, D.C., R. Ridgely and L.M. Witmer (2009). Endocranial Anatomy of Lambeosaurine Hadrosaurids (Dinosauria: Ornithischia): A Sensorineural Perspective on Cranial Crest Function. The Anatomical Record, 292. Weishampel, D.B. (1981). The Nasal Cavity of Lambeosaurine Hadrosaurids (Reptilia: Ornithischia): Comparative Anatomy and Homologies. Journal of Paleontology, 55(5). Subfamily Saurolophinae - Non-crested Hadrosaurs Tribe Brachylophosaurini Dilkes, D.W. (2000). Appendicular myology of the hadrosaurian dinosaur Maiasaura peeblesorum from the Late Cretaceous (Campanian) of Montana. Transactions of the Royal Society of Edinburgh: Earth Sciences, 90. Freedman Fowler, E.A. and J.R. Horner (2015). A New Brachylophosaurin Hadrosaur (Dinosauria: Ornithischia) with an Intermediate Nasal Crest from the Campanian Judith River Formation of Northcentral Montana. PLoS ONE, 10(11). (31MB download) Gates, T.A., et al. (2011). New Unadorned Hadrosaurine Hadrosaurid (Dinosauria, Ornithopoda) from the Campanian of North America. Journal of Vertebrate Paleontology, 31(4). Horner, J.R. (1983). Cranial Osteology and Morphology of the Type Specimen of Maiasaura peeblesorum (Ornithischia: Hadrosauridae) with Discussion of its Phylogenetic Position. Journal of Vertebrate Paleontology, 3(1). Prieto-Marques, A. (2005). New Information on the Cranium of Brachylophosaurus canadensis (Dinosauria, Hadrosauridae), With a Revision of its Phylogenetic Position. Journal of Vertebrate Paleontology, 25(1). Prieto-Marques, A. (2001). Osteology and Variation of Brachylophosaurus canadensis (Dinosauria, Hadrosauridae) from the Upper Cretaceous Judith River Formation of Montana. Masters Thesis - Montana State University. (40.3MB download) Prieto-Marques, A. and M.F. Guenther (2018). Perinatal specimens of Maiasaura from the Upper Cretaceous of Montana (USA): insights into the early ontogeny of saurolophine hadrosaurid dinosaurs. PeerJ, 6:e4734. (A 136.8MB high-res version is also available) (Thanks to Troodon for finding this one!) Tribe Edmontosaurini Campione, N.E. and D.C. Evans (2011). Cranial Growth and Variation in Edmontosaurs (Dinosauria: Hadrosauridae): Implications for Latest Cretaceous Megaherbivore Diversity in North America. PLoS ONE, 6(9). Godefroit, P., Y.L. Bolotsky and P. Lauters (2012). A New Saurolophine Dinosaur from the Latest Cretaceous of Far Eastern Russia. PLoS ONE, 7(5). Manning, P.L., et al. (2009). Mineralized soft-tissue structure and chemistry in a mummified hadrosaur from the Hell Creek Formation, North Dakota (USA). Proc.R.Soc.B. Mori, H. (2014). Osteology, Relationships and Paleoecology of a New Arctic Hadrosaurid (Dinosauria: Ornithopoda) from the Prince Creek Formation of Northern Alaska. Ph.D. Dissertation - University of Alaska, Fairbanks. (43.5MB download) Rybczynski, N., et al. (2008). A Three-Dimensional Animation Model of Edmontosaurus (Hadrosauridae) for Testing Chewing Hypotheses. Palaeontologia Electronica, Vol.11, Issue 2; 9A. Stanton Thomas, K.J. and S.J. Carlson (2004). Microscale δ18O and δ13C isotopic analysis of an ontogenetic series of the hadrosaurid dinosaur Edmontosaurus: implications for physiology and ecology. Palaeogeography, Palaeoclimatology, Palaeoecology, 206. Xing, H., J.C. Mallon and M.L. Currie (2017). Supplementary cranial description of the types of Edmontosaurus regalis (Ornithischia: Hadrosauridae), with comments on the phylogenetics and biogeography of the Hadrosaurinae. PLoS ONE, 12(4). (Thanks to Troodon for pointing this one out!) Xing, H., et al. (2014). Comparative Osteology and Phylogenetic Relationship of Edmontosaurus and Shantungosaurus (Dinosauria: Hadrosauridae) from the Upper Cretaceous of North America and East Asia. Acta Geologica Sinica (English Edition), Vol.88, Number 6. Tribe incertae sedis Prieto-Marquez, A. (2011). A Reapprisal of Barsboldia sicinskii (Dinosauria: Hadrosauridae) from the Late Cretaceous of Mongolia. Journal of Paleontology, 85(3). Tribe Kritosaurini (=Gryposaurini) Brown, B. (1910). The Cretaceous Ojo Alamo Beds of New Mexico with Description of the New Dinosaur Genus Kritosaurus. Bulletin American Museum of Natural History, Vol.XXVIII, Article XXIV. Cruzado-Caballero, P. and R.A. Coria (2016). Revisiting the Hadrosaurid (Dinosauria: Ornithopoda) Diversity of the Allen Formation: A Re-Evaluation of Willinakaqe salitralensis from Salitral Moreno, Rio N*gro Province, Argentina. Ameghiniana, Vol.53(2). Gates, T.A. and R. Scheetz (2014). A new saurolophine hadrosaurid (Dinosauria: Ornithopoda) from the Campanian of Utah, North America. Journal of Systematic Palaeontology, 2014. Gates, T.A. and S.D. Sampson (2007). A new species of Gryposaurus (Dinosauria: Hadrosauridae) from the late Campanian Kaiparowits Formation, southern Utah, USA. Zoological Journal of the Linnean Society, 151. Juarez Valieri, R.D., et al. (2010). A new hadrosauroid (Dinosauria: Ornithopoda) from the Allen Formation (Late Cretaceous) of Patagonia, Argentina. Rev.Mus. Argentino Cienc.Nat., n.s., 12(2). Kirkland, J.I., et al. (2006). Large Hadrosaurine Dinosaurs from the Latest Campanian of Coahuila, Mexico. In: Late Cretaceous vertebrates from the Western Interior. Lucas, S.G. and R.M. Sullivan (eds.), New Mexico Museum of Natural History and Science, Bulletin 35. Lucas, S.G., et al. (2006). Anasazisaurus, a Hadrosaurian Dinosaur from the Upper Cretaceous of New Mexico. In: Late Cretaceous vertebrates from the Western Interior. (Lucas,S.G. and R.M.Sullivan, eds.) New Mexico Museum of Natural History and Science Bulletin 35. Tribe Saurolophini Bell, P.R. (2012). Standardized Terminology and Potential Taxonomic Utility for Hadrosaurid Skin Impressions: A Case Study for Saurolophus from Canada and Mongolia. PLoS ONE, 7(2). Bell, P.R. (2011). Cranial osteology and ontogeny of Saurolophus angustirostris from the Late Cretaceous of Mongolia with comments on Saurolophus osborni from Canada. Acta Palaeontologica Polonica, 56(4). Bell, P.R. and D.C. Evans (2010). Revision of the status of Saurolophus (Hadrosauridae) from California, USA. Can.J. Earth Sci., 47. Brown, B. (1916). A New Crested Trachodont Dinosaur Prosaurolophus maximus. Bulletin American Museum of Natural History, Vol.XXXV, Article XXXVII. Brown, B. (1913). The Skeleton of Saurolophus, a Crested Duck-Billed Dinosaur from the Edmonton Cretaceous. Bulletin American Museum of Natural History, Vol.XXXII, Article XIX. Brown, B. (1912). A Crested Dinosaur from the Edmonton Cretaceous. Bulletin American Museum of Natural History, Vol.XXXI, Article XIV. Gates, T.A. and A.A. Farke (2009). Biostratigraphic and biogeographic implications of a hadrosaurid (Ornithopoda: Dinosauria) from the Upper Cretaceous Almond Formation of Wyoming, USA. Cretaceous Research, 30. Maryanska, T. and H. Osmolska (1984). Postcranial Anatomy of Saurolophus angustirostris With Comments on Other Hadrosaurs. Palaeontologia Polonica, 46. Maryanska, T. and H. Osmolska (1981). Cranial Anatomy of Saurolophus angustirostris With Comments on Asian Hadrosauridae (Dinosauria). Palaeontologia Polonica, 42. Prieto-Marquez, A. and J.R. Wagner (2013). A new species of saurolophine hadrosaurid dinosaur from the Late Cretaceous of the Pacific coast of North America. Acta Palaeontologica Polonica, 58(2). Prieto-Marquez, T., et al. (2014). The late surviving 'duck-billed'dinosaur Augustynolophus from the upper Maastrichtian of western North America and crest evolution in Saurolophini. Geol.Mag. General Saurolophinae Barnes, K.R. (2014). Documentation of a New Saurolophinae Hadrosaur (Dinosauria: Hadrosauridae) from the Lower Part of the Upper Shale Member of the Aguja Formation, (Late Middle to Early,Late Campanian), from the Big Bend Area of Texas. Big Bend Paleo-Geo Journal. General Hadrosauroids General Hadrosauroids - Africa/Middle East Buffetaut, E., et al. (2015). Hadrosauroid Dinosaurs from the Late Cretaceous of the Sultanate of Oman. PLoS ONE, 10(11). General Hadrosauroids - Antarctica Case, J.A., et al. (2000). The First Duck-Billed Dinosaur (Family Hadrosauridae) from Antarctica. Journal of Vertebrate Paleontology, 20(3). General Hadrosauroids - Asia/Malaysia/Pacific Islands Averianov, A.O. and V.R. Alifanov (2012). New Data on Duck-Billed Dinosaurs (Ornithischia, Hadrosauridae) from the Upper Cretaceous of Tajikistan. Paleontological Journal, Vol.46, Number 5. Godefroit, P., et al. (2008). New hadrosaurid dinosaurs from the uppermost Cretaceous of northeastern China. Acta Palaeontologica Polonica, 53(1). Rozhdestvensky, A.K. Hadrosaurs of Kazakhstan. Tan, Q.-W., et al. (2015). New hadrosauroid material from the Upper Cretaceous Majiacun Formation of Hubei Province, central China. Vertebrata PalAsiatica, 53(3). Weishampel, D.B. and J.R. Horner (1986). The Hadrosaurid Dinosaurs from the Iren Dabasu Fauna (People's Republic of China, Late Cretaceous). Journal of Vertebrate Paleontology, 6(1). Yang, D., Z. Wei, and W. Li (1986). Preliminary note on some hadrosaurs from the Cretaceous of Jiayin County, Heilongjiang Province (Manchuria). Nature Research of Heilongjiang Province, Heilongjiang Provincial Museum. General Hadrosauroids - Europe (including Greenland and Siberia) Buffetaut, E. (2009). An additional hadrosaurid specimen (Dinosauria: Ornithischia) from the marine Maastrichtian deposits of the Maastricht area. Carnets de Geologie, Letter 2009/03. Casanovas, M.L., et al. (1999). A primitive euhadrosaurian dinosaur from the uppermost Cretaceous of the Ager syncline (southern Pyrenees, Catalonia). Geologie en Mijnbouww, 73. Company, J., P. Cruzado-Caballero and J.I. Canudo (2015). Presence of diminutive hadrosaurids (Dinosauria: Ornithopoda) in the Maastrichtian of the south-central Pyrenees (Spain). Journal of Iberian Geology, 41(1). Company, J., A. Galobart and R. Gaete (1998). First Data on the Hadrosaurid Dinosaurs (Ornithischia, Dinosauria) from the Upper Cretaceous of Valencia, Spain. Oryctos, Vol.1. Cruzado-Caballero, P., et al. (2014). A new hadrosaurid dentary from the latest Maastrichtian of the Pyrenees (north Spain) and the high diversity of the duck-billed dinosaurs of the Ibero-Armorician Realm at the very end of the Cretaceous. Historical Biology, Vol.26, Number 5. Dalla Vecchia, F.M. (2009). European hadrosauroids. Actas de las IV Jornadas Internacionales sobre Paleontologia de Dinosaurios y su Entorno. Dalla Vecchia, F.M., et al. (2014). The Hadrosaurid Record in the Maastrichtian of the Eastern Tremp Syncline (Northern Spain). In: The Hadrosaurs: Proceedings of the International Hadrosaur Symposium. Evans, D. and D. Eberth (eds.), Indiana University Press, Bloomington. Mulder, E.W.A., J.W.M. Jagt and A.S. Schulp (2005). Another record of a hadrosaurid dinosaur from the Maastrichtian type area (The Netherlands, Belgium): Seeley (1883) revisited. Bulletin De L'Institut Royal Des Sciences Naturelles De Belgique, Sciences De La Terre, 75. Pereda-Superbiola, X., et al. (2009). Hadrosauroid Dinosaurs from the Latest Cretaceous of the Iberian Peninsula. Journal of Vertebrate Paleontology, 29(3). Vila, B., et al. (2013). The Latest Succession of Dinosaur Tracksites in Europe: Hadrosaur Ichnology, Track Production and Palaeoenvironments. PLoS ONE, 8(9). General Hadrosauroids - North America Bryan, J.R., et al. (1991). First Dinosaur Record from Tennessee: A Campanian Hadrosaur. J.Paleont., 65(4). Currie, P.J. (1983). Hadrosaur Trackways from the Lower Cretaceous of Canada. Acta Palaeontologica Polonica, 28(1-2). Herrero, L. and A.A. Farke (2010). Hadrosaurid Dinosaur Skin Impressions from the Upper Cretaceous Kaiparowits Formation of Southern Utah, USA. PalArch, 7(2). Lucas, S.G., et al. (2011). Hadrosaur Footprints from the Upper Cretaceous Fruitland Formation, San Juan Basin, New Mexico and the Ichnotaxonomy of Large Ornithopod Footprints. In: Fossil Record 3. New Mexico Museum of Natural History and Science, Bulletin 53. McDonald, A.T., et al. (2017). Anatomy, taphonomy and phylogenetic implications of a new specimen of Eolambia caroljonesa (Dinosauria: Ornithopoda) from the Cedar Mountain Formation, Utah, USA. PLoS ONE, 12(5). (Thanks to Troodon for locating this one!) Pasch, A.D. and K.C. May (1997). First Occurrence of a Hadrosaur (Dinosauria) from the Matanuska Formation (Turonian) in the Talkeetna Mountains of South-central Alaska. Short Notes on Alaska Geology, 1997. Tanke, D.H. and M.K. Brett-Surman (2001). 15. Evidence of Hatchling- and Nestling-Size Hadrosaurs (Reptilia: Ornithischia) from Dinosaur Provincial Park (Dinosaur Park Formation: Campanian), Alberta. In: Mesozoic Vertebrate Life. Tanke, D.H. and K. Carpenter (eds.), Indiana University Press. Vavrek, M.J., L.V. Hills and P.J. Currie (2015). A Hadrosaurid (Dinosauria: Ornithischia) from the Late Cretaceous (Campanian) Kanguk Formation of Axel Heiberg Island, Nunavut, Canada, and Its Ecological and Geographical Implications. Arctic, Vol.67, Number 1. Wagner, J.R. (2001). The Hadrosaurian Dinosaurs (Ornithischia: Hadrosauria) of Big Bend National Park, Brewster County, Texas, with Implications for Late Cretaceous Paleozoogeography. (Masters Thesis - Texas Tech University). (452 pages, 29.63MB) General Hadrosauroids - South America/Central America/Caribbean Rivera-Sylva, H.E., D.W.E. Hone and P. Dodson (2012). Bite marks of a large theropod on an hadrosaur limb bone from Coahuila, Mexico. Boletín de la Sociedad Geológica Mexicana, Vol.46, Number 1. Serrano-Branas, C.I., et al. (2006). A Natural Hadrosaurid Endocast from the Cerro del Pueblo Formation (Upper Cretaceous) of Coahuila, Mexico. In: Late Cretaceous vertebrates from the Western Interior. Lucas, S.G and R.M.Sullivan (eds.), New Mexico Museum of Natural History and Science Bulletin 35. General Hadrosauroids Bell, P.R. (2014). 34. A Review of Hadrosaurid Skin Impressions. In: The Hadrosaurs: Proceedings of the International Hadrosaur Symposium. Evans, D. and D. Eberth (eds.), Indiana University Press, Bloomington. Bell, P.R. (2012). Standardized Terminology and Potential Taxonomic Utility for Hadrosaurid Skin Impressions: A Case Study for Saurolophus from Canada and Mongolia. PLoS ONE, 7(2). Bramble, K.K. (2017). A Histological Analysis of the Hadrosaurid Dental Battery. Masters Thesis - University of Alberta. (109 pages) Carrano, M.T., C.M. Janis and J.J. Sepkoski (1999). Hadrosaurs as ungulate parallels: Lost lifestyles and deficient data. Acta Palaeontologica Polonica, 44(3). Chapman, R.E. and M.K. Brett-Surman (1990). 12. Morphometric observations on hadrosaurid ornithopods. In: Dinosaur Systematics: Approaches and Perspectives. Carpenter, K. and P.J. Currie (eds.), Cambridge University Press, Cambridge. Davis, M. (2014). Census of dinosaur skin reveals lithology may not be the most important factor in increased preservation of hadrosaurid skin. Acta Palaeontologica Polonica, 59(3). Egi, N. and W.B. Weishampel (2002). Morphometric Analysis of Humeral Shapes in Hadrosaurids (Ornithopoda, Dinosauria). Senckenbergiana lethaea, 82(1). Erickson, G.M., et al. (2012). Complex Dental Structure and Wear Biomechanics in Hadrosaurid Dinosaurs. Nature(Reports), Vol.338. Fiorillo, A.R. (2011). Microwear patterns on the teeth of northern high latitude hadrosaurs with comments on microwear patterns in hadrosaurs as a function of latitude and seasonal ecological constraints. Palaeontologia Electronica, Vol.14, Issue 3. Fricke, H.C., R.R. Rogers and T.A. Gates (2009). Hadrosaurid migration: inferences based on stable isotope comparisons among Late Cretaceous dinosaur localities. Paleobiology, 35(2). LeBlanc, A.R.H., et al. (2016). Ontogeny reveals function and evolution of the hadrosaurid dinosaur dental battery. BMC Evolutionary Biology, 16:152. Lund, E.K. and T.A. Gates (2006). A Historical and Biogeographical Examination of Hadrosaurian Dinosaurs. In: Late Cretaceous vertebrates from the Western Interior. (Lucas, S.G. and R.M.Sullivan, eds.) New Mexico Museum of Natural History and Science Bulletin, 35. Maryanska, T. and H. Osmolska (1983). Some Implications of Hadrosaurian Postcranial Anatomy. Acta Palaeontologica Polonica, 28(1-2). Ostrom, J. (1962). The Cranial Crests of Hadrosaurian Dinosaurs. Postilla - Yale Peabody Museum, Number 62. Ostrom, J. (1961). Cranial Morphology of the Hadrosaurian Dinosaurs. Bulletin of the American Museum of Natural History, Vol.122, Article 2. (47.13MB download) Prieto-Marquez, A. (2008). Phylogeny and Historical Biogeography of Hadrosaurid Dinosaurs. Ph.D. Dissertation - Florida State University. (41.6MB download) Senter, P. (2012). Forearm orientation in Hadrosauridae (Dinosauria: Ornithopoda) and implications for museum mounts. Palaeontologia Electronica, Vol.15, Issue 3. Weishampel, D.B. (1983). Hadrosaurid Jaw Mechanics. Acta Palaeontologica Polonica, 28(1-2). Williams, V.S., P.M. Barrett and M.A. Purnell (2009). Quantitative analysis of dental microwear in hadrosaurid dinosaurs, and the implications for hypotheses of jaw mechanics and feeding. PNAS, Vol.106, Number 27.
  12. Hey guys! If you have bids on hadrosaur eggs currently being sold on our favorite auction site STRONGLY RECONSIDER your purchase... There are several of them being auctioned right now from two different sellers. I bought one and received it on Monday. I was pretty suspicious from the get go, but my curiosity got the better of me. It came from Malaysia (red flag), was packaged well, and came quickly. It looked nice, but a little sketchy. Texture wasn't great. Already I decided I wanted to return it...but I also needed to know if it was really a hoax. That's when I decided to take a knife and scrape away the matrix from the egg for a few hours (I don't have any prep tools). Eventually my knife plunged through a hole. Within the hole I could see there was a small space between the base of the egg and matrix. At this point I decided, what the heck, and grabbed a nail and a hammer. I hammered away until eventually the matrix came off in chunks. One chunk came away with a piece of egg shell. Under the egg shell there were large amounts of glue. It was quite obvious at this point that this was just a piece of junk... With that said, don't make my mistake. I'm sure most people on here are wiser than I am, but the eggs looked reasonable, and the guy offered a full return. Maybe if I hadn't hammered at it I could have gotten my money back, but I had to know. At least I may save other people from getting scammed . Kind regards, Lauren
  13. Hadrosaur teeth growth series

    From the album Dinosaur Fossils collection

    Hadrosaur teeth growth series
  14. Hadrosaur Tooth

    From the album Dinosaur Fossils collection

    Hadrosaur sp. tooth Locality: Hell Creek, Montana, USA Geological Age: Cretaceous
  15. Hadrosaur tooth

    From the album Dinosaur Fossils collection

    Hadrosaur sp. tooth Locality: Hell Creek, Montana, USA Geological Age: Cretaceous
  16. I recently purchased 2 Hadrosaur eggs, they were once joined but the matrix joining them has split (they can still be positioned as they were together, just with a visible crack where the split is). As they are heavy, fragile, and already split I want to display them and keep them safe, here's what I'm thinking: I have a plexiglas tray (thick) that they fit in nicely. I want to create a ground-cover like base that they can sit in, which will have some indentations to keep them from moving, and wanted to make this look like sand or riverbank mud as they would be found in their original natural state. Essentially making a nest or backdrop of their natural surroundings. Then I would place a plex cover to keep dust out. Rather than just fill the tray with sand (which would be messy, likely not too accurate, and wouldn't keep them in place), I want to pour in a wet material that I can sculpt and will dry to a nice base. Any suggestions on what to use? I could use plaster but that will add weight to an already heavy display. Ideally the material could have integral color (redish brown like the muddy matrix these eggs are found in), and some sort of a silty-sandy texture. I'm curious as to what others have used, done, or could suggest for my project. Thanks!
  17. Arctic Hadrosaur

    I would speculate that this hadrosaur had some kind of insulation ( dino fuzz?)as protection from cold weather. A new paper:Matthew J Vavrek, Len V. Hills & Philip J. Currie (2014)A Hadrosaurid (Dinosauria: Ornithischia) from the Late Cretaceous(Campanian) Kanguk Formation of Axel Heiberg Island, Nunavut, Canada,and Its Ecological and Geographical Implications.http://arctic.journalhosting.ucalgary.ca/arctic/index.php/arctic/article/view/4362Abstract:A hadrosaurid vertebra was recovered during a palynological survey ofthe Upper Cretaceous Kanguk Formation in the eastern Canadian Arctic.This vertebra represents the farthest north record of any non-aviandinosaur to date. Although highly abraded, the fossil nonethelessrepresents an interesting biogeographic data point. During theCampanian, when this vertebra was deposited, the eastern CanadianArctic was likely isolated both from western North America by theWestern Interior Seaway and from more southern regions of easternNorth America by the Hudson Seaway. This fossil suggests thatlarge-bodied hadrosaurid dinosaurs may have inhabited a large polarinsular landmass during the Late Cretaceous, where they would havelived year-round, unable to migrate to more southern regions duringwinters. It is possible that the resident herbivorous dinosaurs couldhave fed on non-deciduous conifers, as well as other woody twigs andstems, during the long, dark winter months when most deciduous plantspecies had lost their leaves. News release. http://www.alaskadispatch.com/article/20140330/worlds-farthest-north-dinosaur-bone-find-sheds-light-cretaceous-world
  18. I am in the market looking for a Hadrosaur egg, and i am quite bewildered by the sheer number of variation in their shapes and colors. I am aware that fossilization and prepping methods differs, but I honestly wasn't expecting such a wide spectrum of different Hadrosaur egg types. So perfect it actually looks like it might hatch anytime Round, firm and cracked Flattened just like an Oviraptor's Bowling-ball type!
  19. Recent Display Upgrade

    Here is my recent display change. I was going for a "museum" look. Unfortunately with this display, I can only show the main pieces until I figure out a way to display everything else and have it all still match with what I have set up now. Until then, they are tucked away in their cabinets!
  20. Hadrosaur Egg?

    My sister recently found this object in a creek bed in the Santiam Pass area of Oregon. (Western foothills of the Cascade range, just East of Salem). It measures aprox. 5.5 inches in length. We are wondering if it could be a Hadrosaur egg. Any other possibilties......thoughts? Thanks!
  21. An article (in German) about a hadrosaur graveyard in Mexico: http://www.weser-kurier.de/startseite_artikel,-Auf-den-Spuren-eines-Dinosaurier-Friedhofs-_arid,716919.html Judging from the article, I'd be curious to see if the hadrosaur skeletons are Magnapaulia or Velafrons.
  22. Hello, I recently acquired a Hadrosaur egg and was wondering if this is real or not? It came with paperwork that it is from the Xixia Basin, Henan Province in China. I am skeptical of its authenticity and was wondering if I can get some opinions and maybe even some advice on proving its authenticity. I am new to this hobby and do not want to get taken advantage of. Let me know what you think, all opinions are considered. Thanks for your help! Check out my photo bucket below: http://s42.photobucket.com/user/Ty2kman/slideshow/Dinosaur
  23. http://www.sciencedaily.com/releases/2012/10/121011151625.htm Hadrosaur teeth more complicated than previously thought. Interesting article.
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