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Found 320 results

  1. Me and my brother (shajzer64) went to the Trenton State Museum today for identification on some fossils we found in Monmouth County over the past few months. We also brought along a few fossils we found through the past few years that I believed could be Hadrosaur teeth. We met with Mr. Paris and had a great day. The highlight was a large Mosasaur brain case my brother found last month but we were also very happy to find out that the potential Hadrosaur teeth we had were all indeed Hadrosaur teeth; we had struggled with this ID in the pat so it was nice to know we turned the corner with that one. The last highlight was two crocodile teeth which are also Cretaceous. It was a great start to the morning and definitely strong motivation to hit the streams again as soon as possible!
  2. Mosasaur tooth

    A rooted tooth of a mosasaur.
  3. Me and my brother, shajzer64, both ended up having a day off on the 26th so we ended up heading down to the Cretaceous steams of Monmouth County. It was cold - really cold, but the steams treated us well. I found a large Mosasaur tooth (1.4 inch) with really nice coloration; it is red, yellow, orange and black, a nice ghost shrimp burrow, and my best Ischyodus (ratfish) specimen to date. Shane came up with a nice Xiphactinus tooth, a few nice gastropods, and a very large piece of fossil bone we are going to take to the museum in a few weeks. Overall, it was a tough trip but I'm glad we went for it! Cheers, Frank
  4. The seller of this piece claims that the teeth are not composited onto the matrix, but, judging by this picture, I would say the roots aren't original. They lack texture and the one on the left in the close-up seems 'smudged' up onto the bone. I would imagine the block has original bone but most of the teeth added afterwards, but I may of course be wrong. Can someone more experienced please give their opinion? Either way, it looks like a great piece to me, if a bit out of my price range! Many thanks.
  5. Mosasaurus jaw fragments

    Jaw fragments of a mosasaur.
  6. I bought this fossil mosasaur tooth. It came from Morocco, from some phosphate deposits. The size is very small about 2 centimeters I'm wondering if this tooth was from a juvinile. I have heard that each mosasaur has it's own tooth morphology even in species who's teeth are very similar like Prognathodon and Mosasaurus. The tooth is very unusual from others I have. It is very curved. Photo of tooth Other side
  7. I found this tooth a few years ago in Northeast Mississippi. It is most likely from the Demopolis Formation, which is a late Cretaceous marine lag deposit. I have found several mosasaur teeth here, thousands of shark and fish teeth, and 2 hadrosaur dino teeth. This particular tooth is almost 1.5cm in length, and is unfortunately split right down the middle of the tooth. The part of both sides that is remaining near the tooth makes it look like this was a skinny tooth, more like the shape of a theropod tooth, similar to Dryptosaurus. The recurve is also more theropod-like. The color and weathering is also similar to mosasaur teeth that I have found though, and I am just unsure of what to think about it. Theropod teeth have been found in this area, but they are incredibly rare, whereas, I have found several mosasaur teeth. Perhaps the cross-section of the break along the tooth might give a clue? Perhaps @Troodon knows. I am currently leanung towards it being a strange mosasaur tooth, but I would like other opinions. Northeast Mississippi Demopolis Formation Late Creataceous ~ 72 MYA This photo has a pencil tip for size reference.
  8. Hello all! I saw this mosasaur jaw, and I'm wondering whether the bone is real. The teeth look pretty real to me, and they probably are because those are not worth faking; but I'm really not sure about the bone... The seller admits that glue was used for the jaw, but no restoration or enhancement. Also, I'm wondering whether the teeth come from the jaw or are separate teeth just glued on. I'd like your thoughts on this! Best regards, Max
  9. Hi folks! I'm just getting started on fossil collecting, and have bought a few small things at rock shops. Just bought something online, and I was hoping to confirm it is what I understand it to be. To my beginner eye, I think I have a pretty good sized Mosasaur tooth (not sure what type) in one of those composite matrix setups. I'm leaning towards it having been stained or painted a little too to bring out the tooth. Not sure on that point though. Just one small spot on the matrix in front of the tooth point that glows in black light. Everything else has no glow. Here are some photos. Paid about $50 for this, no clue if that's way too much or not. I liked the look of it, and even if composite matrix they did a really nice job making it attractive for a shelf IMO. Thanks for your thoughts everyone!
  10. Muddy and cold 5 mile hike. I was doing good until my boots went underwater miles from my vehicle and the temp started dropping. The Mosasaur tooth and Gary Point made my day.
  11. Hello! I recently obtained this Moroccan mosasaur jaw, which has a bone lodged up against it which I can't identify. I'm not very good with mosasaurs (yet). The bone is up at the top-left in these images. I had wondered if it was a partial vert, but I don't have the experience with Prognathodon just yet. I think there are some possibly skull elements in the block. Thanks!
  12. any help please.....I'm hoping its a worn partial croc or mosasaur tooth,but what do you guys think...
  13. I am looking at purchasing a mosasaur jaw section, what do you guys think about this one? I don't know much about telling if these types of jaws are real, only good at the more obvious ones. But the yellowing between the teeth and their roots seems a little odd to me?
  14. if any can help id the following.....thanks ...don't know if the one is possible partial croc or mosasaur tooth or not.
  15. Hi: Me again. I found this at Aurora, NC Phosphate mine many moons ago. I am unsure if it's an alligator, mosasaur tooth or something else. Thanks for the help. David .
  16. what is your favorite mosasaur and do you have a fossil or fossils of this mosasaur? im curiose mine is well quite ovious really mines prognathodon saturator and i do have fossil teeth of prognathodon not sure if they are saturator but i have teeth of my favorite mosasaur
  17. Hi all I went out to the NSR today and found this small tooth. I am thinking that it is a small pterygoid tooth from a mosasaur but would like other's input. Thanks! Bret
  18. 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 December 13, 2016. Order Squamata Family Mosasauridae Subfamily Halisaurinae Fernandez, M.S. and M. Talevi (2015). An halisaurine (Squamata: Mosasauridae) from the Late Cretaceous of Patagonia, with a preserved tympanic disc: Insights into the mosasaur inner ear. C.R. Palevol, 14. Konishi, T., et al. (2015). A new halisaurine mosasaur (Squamata: Halisaurinae) from Japan: the first record in the western Pacific realm and the first documented insights into binocular vision in mosasaurs. Journal of Systematic Paleontology. Lingham-Soliar, T. (1996). The first description of Halisaurus (Reptilia, Mosasauridae) from Europe, from the Upper Cretaceous of Belgium. Bulletin de L'Institut Royal des Sciences Naturelles de Belgique - Sciences de la Terre, 66. Mulder, E.W.A. (2003). On the alleged presence of Halisaurus (Squamata, Mosasauridae) in the latest Cretaceous of the Maastrichtian type area. Netherlands Journal of Geosciences, 82(3). Subfamily Incertae sedis Buchy, M.-C., et al. (2006). Cranial anatomy of a Maastrichtian (Upper Cretaceous) mosasaur (Squamata, Mosasauridae) from north-east Mexico. Revista Mexicana de Ciencias Geologicas, 24(1). Soliar, T. (1988). The Mosasaur Goronyosaurus from the Upper Cretaceous of Sokoto State, Nigeria. Palaeontology, Vol.31, Part 3. Subfamily Mosasaurinae Mosasaurinae - Africa/Middle East Bardet, N., et al. (2005). Durophagous Mosasauridae (Squamata) from the Upper Cretaceous phosphates of Morocco, with description of a new species of Globidens.Netherlands Journal of Geosciences, 84-3. LeBlanc, A.R.H., M.W. Caldwell and N. Bardet (2012). A New Mosasaurine from the Maastrichtian (Upper Cretaceous) Phosphates of Morocco and its Implications for Mosasaurine Systematics. Journal of Vertebrate Paleontology, 32(1). Lindgren, J., H.F. Kaddumi, and M.J. Polcyn (2013). Soft tissue preservation in a fossil marine lizard with a bilobed tail fin. Nature Communications, 4: 2423. Polcyn, M.J., et al. (2010). The North African Mosasaur Globidens phosphaticus from the Maastrichtian of Angola. Historical Biology, Vol.22, Numbers 1-3. Schulp, A.S., et al. (2013). Two rare mosasaurs from the Maastrichtian of Angola and the Netherlands. Netherlands Journal of Geosciences, 92-1. Schulp, A.S., et al. (2008). A New Species of Prognathodon (Squamata, Mosasauridae) from the Maastrichtian of Angola, and the Affinities of the Mosasaur Genus Liodon. Proceedings of the Second Mosasaur Meeting. Schulp, A.S., et al. Chapter 2 - New mosasaur material from the Maastrichtian of Angola, with notes on the phylogeny, distribution, and palaeoecology of the genus Prognathodon. Mosasaurinae - Europe (including Greenland) Bardet, N., et al. (2012). First occurrence of Mosasauridae (Squamata) in the Maastrichtian (latest Cretaceous) of Alicante (Valencia Community, Eastern Spain). Estudios Geologicos (accepted manuscript). Caldwell, M.W. and C.G. Diedrich (2005). Remains of Clidastes Cope, 1868, an unexpected mosasaur in the upper Campanian of Germany.Netherlands Journal of Geosciences, 84(3). Diedrich, C. and E.W.A. Mulder (2004). A new record of Clidastes (Squamata, Mosasauridae) from the Upper Campanian of the Munster Basin (NW Germany). Netherlands Journal of Geosciences, 83(1). Dortangs, et al. (2002). A large new mosasaur from the Upper Cretaceous of The Netherlands. Netherlands Journal of Geosciences, 81(1). Fanti, F., A. Cau and A. Negri (2014). A giant mosasaur (Reptilia, Squamata) with an unusually twisted dentition from the Argille Scagliose Complex (late Campanian) of Northern Italy. Cretaceous Research, 49. Grigoriev, D.V. (2014). Giant Mosasaurus hoffmani (Squamata, Mosasauridae) from the Late Cretaceous (Maastrichtian) of Penza, Russia. Proceedings of the Zoological Institute RAS, Vol.318, Number 2. Grigoriev, D.V. (2013). Redescription of Prognathodon lutugini (Squamata, Mosasauridae). Proceedings of the Zoological Institute RAS, Vol.317, Number 3. Grigoriev, D.V., M.S. Arkhangelsky and S.M. Merkulov (2015). A Record of Clidastes propython (Squamata, Mosasauridae) in the Upper Cretaceous of the Saratov Region, Russia. Paleontological Journal, Vol.49, Number 5. Holwerda, F.M., B.L. Beatty and A.S. Schulp (2013). Dental macro- and microwear in Carinodens belgicus, a small mosasaur from the type Maastrichtian. Netherlands Journal of Geosciences, 92-4. Lindgren, J. (2005). Dental and vertebral morphology of the enigmatic mosasaur Dollosaurus (Reptilia, Mosasauridae) from the lower Campanian (Upper Cretaceous) of southern Sweden. Bulletin of the Geological Society of Denmark, Vol.52. Lindgren, J. and M. Siverson (2004). The first record of the mosasaur Clidastes from Europe and its palaeogeographical implications.Acta Palaeontologica Polonica, 49(2). Lingham-Soliar, T. (1995). Anatomy and functional morphology of the largest marine reptile known, Mosasaurus hoffmani (Mosasauridae, Reptilia) from the Upper Cretaceous, Upper Maastrichtian, of The Netherlands. Phil.Trans.R.Soc.Lond. B, 347 (Thanks to doushantuo for pointing this one out!) Schulp, A.S., et al. (2013). Two rare mosasaurs from the Maastrichtian of Angola and the Netherlands. Netherlands Journal of Geosciences, 92-1. Schulp, A.S., et al. (2004). Rib fracture in Prognathodon saturator (Mosasauridae, Late Cretaceous). Netherlands Journal of Geosciences, 83(4). Street, H.P. and M.W. Caldwell (2014). Reassessment of Turonian Mosasaur Material from the 'Middle Chalk' (England, U.K.) and the Status of Mosasaurus gracilis Owen, 1849. Journal of Vertebrate Paleontology, 34(5). Mosasaurinae - North America Bell, G.L. and M.J. Polcyn (2005). Dallasaurus turneri, a new primitive mosasauroid from the Middle Turonian of Texas and comments on the phylogeny of Mosasauridae (Squamata). Netherlands Journal of Geosciences, 84-3. Konishi, T. (2012). The northernmost occurrence of Prognathodon (Squamata: Mosasauridae) from the Western Interior Seaway of North America. Can.J. Earth Sci., 49. Konishi, T., et al. (2011). New Exceptional Specimens of Prognathodon overtoni (Squamata, Mosasauridae) from the Upper Campanian of Alberta, Canada, and the Systematics and Ecology of the Genus. Journal of Vertebrate Paleontology, 31(5). Lucas, S.G., et al. (2005). The Mosasaur Prognathodon from the Upper Cretaceous Lewis Shale Near Durango, Colorado and the Distribution of Prognathodon in North America. New Mexico Geological Survey, 56th Field Conference Guidebook, Geology of the Chama Basin. Mulder, E.W.A., et al. (2013). The first North American record of Carinodens belgicus (Squamata, Mosasauridae) and correlation with the youngest in situ examples from the Maastrichtian type area: paleoecological implications. Netherlands Journal of Geosciences, 92-2/3. Russell, D.A. (1975). A New Species of Globidens from South Dakota, and a Review of Globidentine Mosasaurs. Fieldiana Geology, Vol.33, Number 13. Whitfield, R.P. (1900). Note on the Principal Type Specimen of Mosasaurus maximus Cope, with Illustrations.Bulletin American Museum of Natural History, Vol.XIII, Article IV. Mosasaurinae - South America/Central America/Caribbean Frey, E., et al. (2016). A mosasaur, cf. Plotosaurus, from the upper Maastrichtian Quiriquina Formation in Central Chile. Cretaceous Research, 61. General Mosasaurinae Field, D.J., et al. (2015). Pelagic Neonatal Fossils Support Viviparity and Precocial Life History of Cretaceous Mosasaurs. Palaeontology, 2015. Houssaye, A., et al. (2013). Microanatomical and Histological Features in the Long Bones of Mosasaurine Mosasaurs (Reptilia, Squamata) - Implications for Aquatic Adaptation and Growth Rates. PLoS ONE, 8(10). LeBlanc, A.R.H. (2011). Phylogeny of the Mosasaurinae (Squamata: Mosasauridae) With Descriptions and Functional Morphology of New and Existing Mosasaurines. Masters Thesis - University of Alberta. Lindgren, J., et al. (2009). Skin of the Cretaceous mosasaur Plotosaurus: implications for aquatic adaptations in giant marine reptiles. Biol.Lett., 5. Subfamily Plioplatecarpinae Bengtson, P. and J. Lindgren (2005). First Record of the Mosasaur Platecarpus Cope, 1869 from South America and its Systematic Implications. Revista Brasileira de Paleontologia, 8(1). Konishi, T. (2009). Systematics of Plioplatecarpinae (Squamata: Mosasauridae). Ph.D. Thesis - University of Alberta. Konishi, T., et al. (2012). Platecarpus typaniticus (Squamata, Mosasauridae): Osteology of an Exceptionally Preserved Specimen and Its Insights Into the Acquisition of a Streamlined Body Shape in Mosasaurs. Journal of Vertebrate Paleontology, 32(6). Lindgren, J., M.J. Everhart and M.W. Caldwell (2011). Three-Dimensionally Preserved Integument Reveals Hydrodynamic Adaptations in the Extinct Marine Lizard Ectenosaurus (Reptilia, Mosasauridae). PLoS ONE, 6(11). (Read on-line or download a copy.) Lindgren, J., et al. (2010). Convergent Evolution in Aquatic Tetrapods: Insights from an Exceptional Fossil Mosasaur. PLoS ONE, 5(8). Lingham-Soliar, T. (1994). The Mosasaur Plioplatecarpus (Reptilia, Mosasauridae) from the Upper Cretaceous of Europe. Bulletin de L'Institut Royal des Sciences Naturelles de Belgique - Sciences de la Terre, 64. Lucas, S.G. and P.K. Reser (1981). A mosasaur from the Lewis Shale (Upper Cretaceous), northwestern New Mexico. New Mexico Geology. Subfamily Tethysaurinae Makádi, L., M.W. Caldwell and A. Ösi (2012). The First Freshwater Mosasauroid (Upper Cretaceous, Hungary) and a New Clade of Basal Mosasauroids. PLoS ONE, 7(12). Polcyn, M.J. and G.L. Bell (2005). Russellosaurus coheni n. gen., n. spec., a 92 million-year-old mosasaur from Texas (USA), and the definition of the parafamily Russellosaurina. Netherlands Journal of Geosciences, 84-3. Subfamily Tylosaurinae Tylosaurinae - Antarctica Otero, R.A., et al. (2016). Kaikaifilu hervei gen. et sp.nov., a new large mosasaur (Squamata, Mosasauridae) from the upper Maastrichtian of Antarctica. Cretaceous Research, xxx. (uncorrected proof) Tylosaurinae - Europe (including Greenland) Bardet, N., X.P. Suberbiola and J.C. Corral (2006). A Tylosaurine Mosasauridae (Squamata) from the Late Cretaceous of the Basque-Cantabrian Region. Estudios Geologicos, 62(1). Hornung, J.J. and M. Reich (2015). Tylosaurine mosasaurs (Squamata) from the Late Cretaceous of northern Germany. Netherlands Journal of Geosciences, 94-1. Jagt, J.W.M., et al. (2005). New records of the tylosaurine mosasaur Hainosaurus from the Campanian-Maastrichtian (Late Cretaceous) of central Poland. Netherlands Journal of Geosciences, 84-3. Tylosaurinae - North America Everhart, M.J. (2008). A bitten skull of Tylosaurus kansasensis (Squamata: Mosasauridae) and a review of mosasaur-on-mosasaur pathology in the fossil record. Transactions of the Kansas Academy of Science, Vol.111, Numbers 3/4. Everhart, M.J. (2005). Tylosaurus kansasensis, a new species of tylosaurine (Squamata, Mosasauridae) from the Niobrara Chalk of western Kansas, USA. Netherlands Journal of Geosciences, 84-3. Everhart, M.J. (2005). Earliest record of the genus Tylosaurus (Squamata; Mosasauridae) from the Fort Hays Limestone (Lower Coniacian) of western Kansas. Transactions of the Kansas Academy of Science, Vol.108, Numbers 3/4. Everhart, M.J. (2004). Plesiosaurs as the Food of Mosasaurs: New Data on the Stomach Contents of a Tylosaurus proriger (Squamata; Mosasauridae) from the Niobrara Formation of Western Kansas.The Mosasaur, 7. Everhart, M.J. (2002). New Data on Cranial Measurements and Body Length of the Mosasaur, Tylosaurus napaeolicus (Squamata; Mosasauridae), from the Niobrara Formation of Kansas. Transactions of the Kansas Academy of Science, 105(1-2). Lucas, S.G., A.B. Heckert and B.S. Kues (1995). A Late Cretaceous Mosasaur from North-Central New Mexico. New Mexico Geological Society Guidebook, 46th Field Conference, Geology of the Santa Fe Region. Meredith, R.W., J.E. Martin and P.N. Wegleitner (2007). The largest mosasaur (Squamata: Mosasauridae) from the Missouri River area (Late Cretaceous: Pierre Shale Group) of South Dakota and its relationship to Lewis and Clark. The Geological Society of America, Special Paper 427. Tylosaurinae - South America/Central America/Caribbean Flores, A.L. (2013). Occurrence of a tylosaurine mosasaur (Mosasauridae; Russellosaurina) from the Turnoian of Chihuahua State, Mexico. Boletin de la Sociedad Geologica Mexicana, Vol.65, Number 1. General Tylosaurinae Lyons, P.D., M. Rioux and R.T. Patterson (2000). Application of a Three-Dimensional Color Laser Scanner to Paleontology: An Interactive Model of a Juvenile Tylosaurus sp. Basisphenoid-Basioccipital. Palaeontologia Electronica, Vol.3, Issue 2. General Mosasauridae General Mosasauridae - Africa/Middle East Jacobs, L,L., et al. (2006). The Occurrence and Geological Setting of Cretaceous Dinosaurs, Mosasaurs, Plesiosaurs and Turtles from Angola. J.Paleont.Soc. Korea, Vol.22, Number 1. Lingham-Soliar, T. (1991). Mosasaurs from the Upper Cretaceous of Niger. Palaeontology, Vol.34, Part 3. Mustafa, H. and I. Zalmout (2001). On the Dentitions of Mosasauridae (Marine Reptiles) from the Late Cretaceous (Early Maastrichtian) of the Jordanian Phosphate. Dirasat, Pure Sciences, Vol.28, Number 1. Strganac, C., et al. (2015). Stable oxygen isotope chemostratigraphy and paleotemperature regime of mosasaurs at Bentiaba, Angola. Netherlands Journal of Geosciences, published on-line. General Mosasauridae - Asia/Malaysia/Pacific Islands Tanimoto, M. (2005). Mosasaur remains from the Upper Cretaceous Izumi Group of southwest Japan. Netherlands Journal of Geosciences, 84-3. General Mosasauridae - Australia/New Zealand Kear, B.P., J.A. Long, and J.E. Martin (2005). A review of Australian mosasaur occurrences. Netherlands Journal of Geosciences, 84-3. General Mosasauridae - Europe (including Greenland) Gren, J.A. and J. Lindgren (2013). Dental histology of mosasaurs and a marine crocodylian from the Campanian (Upper Cretaceous) of southern Sweden: incremental growth lines and dentine formation rates. Geol.Mag., 150(01). Grigoriev, D.V., et al. (2009). A Mosasaur from the Cenomanian of Russia. Paleontological Journal, Vol.43, Number 3. Jagt, J.W.M., et al. (2006). Latest Cretaceous mosasaurs and lamniform sharks from Labirinta cave, Vratsa district (northwest Bulgaria): a preliminary note. Annales Geologiques de la Peninsule Balkanique, 67. Lindgren, J. (1998). Early Campanian mosasaurs (Reptilia: Mosasauridae) from the Kristianstad Basin, southern Sweden. Examensarbete i geologi vid Lunds Universitet, Number 95. Machalski, M., et al. (2003). Campanian and Maastrichtian mosasaurid reptiles from central Poland. Acta Palaeontologica Polonica, 48(3). Sachs, S., J.J. Hornung and M. Reich (2015). Mosasaurs from Germany - a brief history of the first 100 years of research. Netherlands Journal of Geosciences, 94-1. Schulp, A.S., et al. (2013). On diving and diet: resource partitioning in type-Maastrichtian mosasaurs. Netherlands Journal of Geosciences, 92-2/3. Sulimski, A. (1968). Remains of Upper Cretaceous Mosasauridae (Reptilia) of Central Poland. Acta Palaeontologica Polonica, Vol.XIII, Number 2. General Mosasauridae - North America Bell, G.L., K.R. Barnes and M.J. Polcyn (2012). Late Cretaceous mosasauroids (Reptilia, Squamata) of the Big Bend region in Texas, USA. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 103. Callison, G. (1967). Intracranial Mobility in Kansas Mosasaurs. The University of Kansas Paleontological Contributions, Paper 26. Everhart, M.J. (2016). Rare occurrence of mosasaur (Squamata: Mosasauroidea) remains in the Blue Hill Shale (Middle Turonian) of Mitchell County, Kansas. Transactions of the Kansas Academy of Science, Vol.119, Numbers 3-4. Everhart, M.J. (2001). Revisions to the Biostratigraphy of the Mosasauridae (Squamata) in the Smoky Hill Chalk Member of the Niobrara Chalk (Late Cretaceous) of Kansas. Transactions of the Kansas Academy of Science, Volume 104, numbers 1-2. Gallagher, W.B. (2014). Greensand mosasaurs of New Jersey and the Cretaceous - Paleogene transition of marine vertebrates. Netherlands Journal of Geosciences. Gallagher, W.B. (2005). Recent mosasaur discoveries from New Jersey and Delaware, USA: stratigraphy, taphonomy, and implications for mosasaur extinction. Netherlands Journal of Geosciences,84(3). Gallagher, W.B., et al. (2012). On the last mosasaurs: Late Maastrichtian mosasaurs and the Cretaceous-Paleogene boundary in New Jersey. Bull.Soc.géol. France, 183, Number 2. Kauffman, E.G. and R.V. Kesling (1960). An Upper Cretaceous Ammonite Bitten by a Mosasaur. Contributions from the Museum of Paleontology, The University of Michigan, Vol.XV, Number 9. Polcyn, M.J., et al. (2008). The Oldest North American Mosasaurs (Squamata: Mosasauridae) from the Turonian (Upper Cretaceous) of Kansas and Texas With Comments on the Radiations of Major Mosasaur Clades. Proceedings of the Second Mosasaur Meeting. Russell, D.A. (1967). Systematics and Morphology of American Mosasaurs. Peabody Museum of Natural History, Bulletin 23. Spielmann, J.A. and S.G. Lucas (2006). Late Cretaceous Marine Reptiles (Mosasauridae and Pleisiosauria) from New Mexico and Their Biostratigraphic Distribution. 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. Stewart, J.D. and G.L. Bell (1994). North America's Oldest Mosasaurs are Teleosts. Contributions in Science, Natural History Museum of Los Angeles County, Number 441. General Mosasauridae - South America/Central America/Caribbean Buchy, M.-C., et al. (2007). Cranial anatomy of a Maastricthian (Upper Cretaceous) mosasaur (Squamata, Mosasauridae) from north-east Mexico.Revista Mexicana de Ciencias Geologicas, Vol. 24, Number 1. Buchy, M.-C., et al. (2005). Annotated catalog of marine squamates (Reptilia) from the Upper Cretaceous of northeastern Mexico. Netherlands Journal of Geosciences, 84-3. General Mosasauridae Caldwell, M.W. and G.L. Bell (2005). Of German princes and North American rivers: Harlan's lost mosasaur snout rediscovered. Netherlands Journal of Geosciences, 84-3. Caldwell, M.W. and M.S.Y. Lee (2001). Live birth in Cretaceous marine lizards (mosasauroids). Proc.R.Soc.Lond.B, 268. D'Emic, M.D., K.M. Smith and Z.T. Ansley (2015). Unusual Histology and Morphology of the Ribs of Mosasaurs (Squamata). Palaeontology, 58(3). deBraga, M. (1990). Anatomical and Functional Changes Between Terrestrial Varanoid Lizards and Aquatic Mosasaurs. Masters Thesis - McGill University, Montreal. Gren, J.A. (2011). Dental histology of Cretaceous mosasaurs (Reptilia, Squamata): incremental growth lines in dentine and implications for tooth replacement. Masters Thesis - Lund University. King, S.D. (2009). The Ability of Mosasaurs to Produce Unique Puncture Marks on Ammonite Shells. Masters Thesis - Bowling Green State University. Liu, M., et al. (2016). Varanoid Tooth Eruption and Implantation Modes in a Late Cretaceous Mosasaur. Frontiers in Physiology, Vol.7, Article 145. Luan, X., et al. (2009). The Mosasaur Tooth Attachment Apparatus as Paradigm for the Evolution of the Gnathostome Periodontium. Evolution & Development, 11(3). Osborn, H.F. (1899). A Complete Mosasaur Skeleton, Osseous and Cartilaginous. Memoirs of the American Museum of Natural History, Vol.1, Part IV. (Also includes: Part V - The Skeleton of Diplodocus) Polcyn, M.J., et al. (2014). Physical drivers of mosasaur evolution. Palaeogeography, Palaeoclimatology, Palaeoecology, 400. Rieppel, O. (2000). The braincases of mosasaurs and Varanus, and the relationships of snakes. Zoological Journal of the Linnean Society, 129. Rieppel, O. and H. Zaher (2001). Re-building the bridge between mosasaurs and snakes. N.Jb.Geol.Palaont.Abh., 221(1). Ross, M.R. (2009). Charting the Late Cretaceous Seas: Mosasaur Richness and Morphological Diversification. Journal of Vertebrate Paleontology, 29(2). Rothschild, B.M. and M.J. Everhart (2015). Co-ossification of vertebrae in mosasaurs (Squamata: Mosasauridae); Evidence of habitat interactions and susceptibility to bone disease. Transactions of the Kansas Academy of Science, Vol.118, Numbers 3-4. Rothschild, B.M. and L.D. Martin (2005). Mosasaur ascending: the phylogeny of bends. Netherlands Journal of Geosciences, 84-3. Russell, D.A. (1964). Intracranial Mobility in Mosasaurs. Peabody Museum of Natural History Postilla, Number 86. Schulp, A.S., E.W.A. Mulder and K. Schwenk (2005). Did mosasaurs have forked tongues? Netherlands Journal of Geosciences, 84(3). Yamashita, M., T. Konishi and T. Sato (2015). Sclerotic Rings in Mosasaurs (Squamata: Mosasauridae): Structures and Taxonomic Diversity. PLoS ONE, 10(2).
  19. Hi there. I've been looking at this jaw, and based on what I've read, I'd guess that the matrix is probably real but the teeth have been placed after the fact. Can anyone offer any insights please? Thanks.
  20. Hi everyone, I am new on the forum. I found this Mosasaur jaw for a very good price on a local auction site. But I doubt if its real because of the price.. I assume that the jaw was found in Morocco, but it looks nothing like the common fakes. What is your opinion about the specimen?
  21. My first mosasaur paint. Acrylic on stone. This was fun!
  22. Hello fossil-lovers! What do you think of this fossil jaw: is it real or fake? It seems a bit too perfect to me. The seller told me it was a mosasaur jaw from Brazil. It definitely looks like mosasaur material (teeth), but I've never heard of a mosasaur from Brazil, and in my books there isn't a single mention of any mosasaur species found in Brazil. I bought the fossil in a small shop selling only fossils and minerals (not online), somewhere in Auvergne, France. In my opinion: real teeth, stuck into a fake jaw. What do you think? Thanks for your help! Max
  23. http://www.foxnews.com/science/2016/11/11/newfound-ancient-sea-monster-is-largest-yet-from-antarctica.html
  24. I bought some new cool stuff at a local show. I only bought Moroccan material. A few Mosasaur pieces and stuff from Kem Kem. I've only started cleaning and will research them a bit more later. So I thought I'd share some pics first. I also got some new display items that will be nice to showcase some of my other stuff in. From left to right. Top: First there's a chuck with two roots and one tooth. There's also some bone fragments that look like they could be jaw pieces. Will be a fun prepping project. Then there's a Prognathodon tooth that isn't the prettiest but it's really big and it was cheap so I had to get it. And at the end there's a Plesiosaur vertebra with a partial neural arch that will be fun to clean. Bottom: On the left there's a neural arch from a Spinosaurid. I compared it to the recent reconstruction of Spinosaurus and it looks like it's a pretty close match with some of the first dorsal vertebrae. Middle top there's a small caudal vertebra. Middle bottom there's a fish jaw. And on the right from top to bottom. A possible distal femur. A metacarpal/tarsal? And a possible proximal tibia. All three are hollow and probably Theropod or bird. So I have some research and cleaning to do! Really big ugly Mosasaur tooth. Mosasaur tooth and jaw fragments. Fish jaw. Distal femur. It's very asymmetrical as well. Metacarpal or tarsal. The head is almost symmetrical but the shaft seems to be angled more. Spinosaur neural arch from a different angle. Roughly a dorsoposterior view. Since it's not very complete on one side this will make for a great piece to scan and digitally mirror so that I can recreate a bit of the missing pieces. So I'll be having fun with these pieces for a while.
  25. this is my most prized fossil i found it on the same fossil dig as the six gill sharks tooth it is quite possibly the remains of mosasaurus gracilis the british mosasaur a 15.1 meter long mosasaur although not as big as mosasaurus hoffmannii. making mosasaurus gracilis the third largest mosasaur