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Found 477 results

  1. North Texas Creek Hunts

    I managed to get in 3 hunts on my 14 days off from offshore this time. I found more artifacts than fossils but I did manage to find a nice Mosasaur vert, shark teeth and a really old coke bottle. This is a mix from Post Oak Creek and one more creek that I hunt. I gave away all the teeth except for the perfect ones to my buddy since it was his first time ever hunting.
  2. Mosasaur jaw fragment(2)

    From the album Denton County, TX

    11-9-17
  3. Mosasaur jaw fragment(1)

    From the album Denton County, TX

    11-9-17
  4. Hello. Just another mosasaur jaw thread! This one puzzles me a little. Obviously it has the replaced teeth, as usual. But it doesn't look right to me. For starters, all of those straight edges. It looks an awful lot like a composite. Almost like three or four chunks of jaw cobbled together with some random skull bones. Am I being paranoid, could these be natural breaks? My experience tells me that jaws don't break along these straight lines, but I thought I'd throw it out there to see what people think. Thanks for your help.
  5. Worth taking a second look

    I have a gallon jar filled with broken teeth that I have collected over the last few years and tonight I was pulling out some teeth to give away to some freinds kids when I came across these two things that have been in the jar for a few years. The first is a partial Mosasaur tooth which was a welcome surprise and the second a peice of enamel that I am wondering if it could be mammoth or is it wishful thinking On my part. As always, thanks for the feedback.
  6. I found this nice chunk of mosasaur (?) bone over the weekend at the North Sulphur River in Ladonia, Texas. It has beautiful black enamel on each side that is very smooth and shiny. It has a bowl shaped curve to it on one side. I was thinking it was a rib chunk, but I wasn’t sure with it having the curve. What do you all think? Thank you in advance!
  7. Fossils from middle East phosphates

    Can anyone please help I'd those fossils? From the tethys phosphates middle East. The first one is just a thin layer (not an impression) So it's not a tooth or a vertebra. But I can't tell what it is. Looks like a scale or a limpet... Also in the second pic I would really appreciate if someone knows which shark species they are!
  8. Mosasaur Vert & Artifacts

    From the album Northeast Texas Creek

  9. Mosasaur Vert

    From the album Northeast Texas Creek

  10. New Jersey Mosasaur tooth ID help

    Greetings! I recently found this partial (what I believe to be) Mosasaur tooth and the texture of the enamel isn't typical of the Mosasaur I have found. I was wondering if this is consistent with any particular species of Mosasaur or if it's just a different type of preservation than I am used to. It was found in the Monmouth County NJ Cretaceous and the bottom part of the tooth is broken. Thanks in advance for your help! -Frank .6 inch Two cutting edges
  11. Moroccan Mosasaur teeth

    Recently collected a few mosasaur teeth near Bakrit Morocco late Cretaceous
  12. Explored another new North Texas creek. Not many fossils but great for artifacts. We did manage to find one beat up Mosasaur vert, shark teeth and a Gastropod. 10 hour hike. :/
  13. Hi y'all, Here are the finds from 3 separate half day trips to Post Oak Creek during the first weekend of Feb and from last Saturday. One of those days was spent hunting a new to me part of the creek that seemed to have more trash and glass than fossils. That day I decided to make a move to a more productive part of the creek to collect some gravel that I had promised my nieces so they could do some fossil hunting at home. Also I collected some for myself. Last Saturday @Buffalo Bill Cody and I went hunting. It's was warmer and I noticed several bass swimming in the creek. I'll have to bring my fishing pole for the next outing. The week before last I went canoeing on the Llano River for 4 days where I had the pleasure of seeing some interesting fossils that I'll be posting below. Bare with me. I'm posting from an IPhone.
  14. 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 October 24, 2017. 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. Holmes, R.B. and H.-D. Sues (2000). A Partial Skeleton of the Basal Mosasaur Halisaurus platyspondylus from the Severn Formation (Upper Cretaceous: Maastrichtian) of Maryland. J.Paleont., 74(2). 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. (2008). New Material of Carinodens (Squamata, Mosasauridae) from the Maastrichtian (Late Cretaceous) Phosphates of Morocco. Proceedings of the Second Mosasaur Meeting-2008. 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 - 2008. 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 - Asia/Malaysia/Pacific Islands Tanimoto, M. (2008). New Material of Kourisodon sp. from Japan. Proceedings of the Second Mosasaur Meeting - 2008. Mosasaurinae - Australia/New Zealand Wiffen, J. (1980). Moanasaurus, a new genus of marine reptile (Family Mosasauridae) from the Upper Cretaceous of North Island, New Zealand. New Zealand Journal of Geology & Geophysics, Vol.23. Mosasaurinae - Europe (including Greenland and Siberia) 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 hoffmanni (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. Jagt, J.W.M., et al. (2008). The Youngest In Situ Record to Date of Mosasaurus hoffmanni (Squamata, Mosasauridae) from the Maastrichtian Type Area, The Netherlands. Proceedings of the Second Mosasaur Meeting - 2008. 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. (2006). First Record of the Late Cretaceous Durophagous Mosasaur Carinodens belgicus (Squamata, Mosasauridae) from Volgogradskaya Oblast' (Russia) and Crimea (Ukraine). Russian Journal of Herpetology, Vol.13, Number 3. 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. Field, D.J., et al. (2015). Pelagic Neonatal Fossils Support Viviparity and Precocial Life History of Cretaceous Mosasaurs. Palaeontology, 2015. 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). Cuthbertson, R.S., et al. (2015). The Braincase and Endosseous Labyrinth of Plioplatecarpus peckensis (Mosasauridae, Plioplatecarpinae), With Functional Implications for Locomotor Behavior. The Anatomical Record, 298. (Thanks to doushantuo for finding this one!) 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. Paramo-Fonseca, M.E. (2000). Yaguarasaurus columbianus (Reptilia, Mosasauridae), a Primitive Mosasaur from the Turonian (Upper Cretaceous) of Colombia. Historical Biology, Vol.14. Polcyn, M.J. and M.J. Everhart (2008). Description and Phylogenetic Analysis of a New Species of Selmasaurus (Mosasauridae: Plioplatycarpinae) from the Niobrara Chalk of Western Kansas. Proceedings of the Second Mosasaur Meeting - 2008. Williston, S.W. (1910). A Mounted Skeleton of Platecarpus. The Journal of Geology, Vol.18, Number 6. Subfamily Tethysaurinae Garcia, G., et al. (2015). Mosasauroid (Squamata) discovery in the Late Cretaceous (Early Campanian) continental deposits of Villevayrac-L'Olivet, southern France. C.R. Palevol, 14. 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. Schumacher, B.A. (2011). A 'woollgari-zone mosasaur' (Squamata; Mosasauridae) from the Carlile Shale (Lower Middle Turonian) of central Kansas and the stratigraphic overlap of early mosasaurs and pliosaurid plesiosaurs. Transactions of the Kansas Academy of Science, Vol.114, Numbers 1-2. Subfamily Tylosaurinae Tylosaurinae - Africa/Middle East Lingham-Soliar, T. (1992). The Tylosaurine Mosasaurs (Reptilia, Mosasauridae) from the Upper Cretaceous of Europe and Africa. Bulletin De L'Institut Royal Des Sciences Naturelles De Belgique, Sciences De La Terre, 62. Tylosaurinae - Antarctica Novas, F.E., et al. (2002). Lakumasaurus antarcticus n.gen et sp., a new mosasaur (Reptilia, Squamata) from the Upper Cretaceous of Antarctica. Ameghiniana, 39(2). 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 and Siberia) 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. Lingham-Soliar, T. (1992). The Tylosaurine Mosasaurs (Reptilia, Mosasauridae) from the Upper Cretaceous of Europe and Africa. Bulletin De L'Institut Royal Des Sciences Naturelles De Belgique, Sciences De La Terre, 62. Mulder, E.W.A. and H. Mai (1999). The oldest tylosaurine mosasaur (Reptilia; Lacertilia) from the Late Cretaceous of Belgium: Hermann von Meyer (1860) revisited. Geologie en Mijnbouw, 78. 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. Osborn, H.F. (1899). A Complete Mosasaur Skeleton, Osseous and Cartilaginous. Science, N.S., Vol.X, Number 260. Schumacher, B.A. and J.E. Martin (1993). First Definitive Record of the Mosasaur Tylosaurus proriger from the Niobrara Formation (Upper Cretaceous), South Dakota. Proc.S.D.Acad.Sci., Vol.72. 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 Carpenter, J.A. (2017). Locomotion and skeletal morphology of Late Cretaceous mosasaur, Tylosaurus proriger. Honors Thesis - Georgia Southern University. Jimenez-Huidobro, P.A. (2016). Phylogenetic and Palaeobiogeographical Analysis of Tylosaurinae (Squamata: Mosasauroidea). Ph.D. Thesis - University of Alberta. 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. Wiffen, J. (1990). New mosasaurs (Reptilia; Family Mosasauridae) from the Upper Cretaceous of North Island, New Zealand. New Zealand Journal of Geology & Geophysics, Vol.33. General Mosasauridae - Europe (including Greenland and Siberia) 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. (2005). Stratigraphic ranges of mosasaurs in Belgium and the Netherlands (Late Cretaceous) and cephalopod-based correlations with North America. Netherlands Journal of Geosciences, 84-3. 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). Mulder, E.W.A. (1999). Transatlantic latest Cretaceous mosasaurs (Reptilia, Lacertilia) from the Maastrichtian type area and New Jersey. Geologie en Mijnbouw, 78. Sachs, S. (2006). First record of a mosasaur (Reptilia: Squamata) from the Upper Cretaceous of Central Germany. Abh. Ber.Mus. Heineanum, 7. 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. Mulder, E.W.A. (1999). Transatlantic latest Cretaceous mosasaurs (Reptilia, Lacertilia) from the Maastrichtian type area and New Jersey. Geologie en Mijnbouw, 78. 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. Ifrim, C., et al. (2008). Paleoenvironment and Preliminary Description of Early Turonian (Late Cretaceous) Aquatic Squamates from Vallecillo, North-Eastern Mexico. Proceedings of the Second Mosasaur Meeting - 2008. General Mosasauridae Caldwell, M.W. (1996). Ontogeny and phylogeny of the mesopodial skeleton in mosasauroid reptiles. Zoological Journal of the Linnean Society, 116. 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. Connolly, A.M. (2016). Exploring the Relationship between Paleobiogeography, Deep-Diving Behavior, and Size Variation of the Parietal Eye in Mosasaurs. Masters Thesis - University of Kansas. 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. Everhart, M.J. (2005). Rapid evolution, diversification and distribution of mosasaurs (Reptilia; Squamata) prior to the K-T Boundary. Tate 2005 11th Annual Symposium in Paleontology and Geology. (not peer reviewed). 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. Houssaye, A. and P. Tafforeau (2012). What Vertebral Microanatomy Reveals About the Ecology of Juvenile Mosasaurs (Reptilia, Squamata). Journal of Vertebrate Paleontology, 32(5). 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). Madzia, D. and A. Cau (2017). Inferring 'weak spots' in phylogenetic trees: application to mosasauroid nomenclature. PeerJ, 5:e3782. 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). Simoes, T.R., et al. (2017). Mosasauroid phylogeny under multiple phylogenetic methods provides new insights on the evolution of aquatic adaptations in the group. PLoS ONE, 12(5). Yamashita, M., T. Konishi and T. Sato (2015). Sclerotic Rings in Mosasaurs (Squamata: Mosasauridae): Structures and Taxonomic Diversity. PLoS ONE, 10(2).
  15. 4 Moroccan teeth

    Hi all, At the local market yesterday I bought these 4 teeth (in total for a very low price). All 4 are said to come from Morocco, but the seller didn't say the exact location. But I suppose that they are either from Kem Kem or Khouribga. Anyways I would just like your opinion on them (what species, 100% original or slightly reconstructed, anything I could do to "improve" them, etc). Thanks in advance! Best regards, Max Tooth #1: sold as a spinosaur tooth (so I suppose it's from Kem Kem).
  16. A friend of mine proposed to buy this piece. What do you think? thanks to everybody
  17. I got this jaw in the post today. It's 26 inches long, and seems to be the upper left jaw of a large-ish mosasaur, perhaps Prognathodon? The teeth don't provide much of a clue, since the crowns are, sorry to say, all added in afterwards. I knew this when I bought it, and I paid what I consider to be a fair price for a jaw of this size with botched-up teeth. My aim is ultimately to extract it, and mount it. At that point, I can sort the teeth out to a better standard, and replace the worst examples. I'm interested in any thoughts about the jaw in general - whether you see any obvious signs of tampering or anything unusual. I really wish people wouldn't interfere with these fossils to begin with! Thanks.
  18. I started working on a Mosasaur snout end, and so far it is coming well. I have been running into one issue though with starting to use a sandblaster, and that is that I can't figure out how to clean the extra dolomite off the piece when I am done. I have tried blowing it off with an air compressor, which gets most of it, and using water, which has caused some problems. The water seems to get into cracks and destabilize the matrix, leading to breakage. Any ideas? On this one it dissolved some elmer's glue that was used in a repair, and on some trilobites it broke the matrix. Thanks! Nathan Progress so far.
  19. I headed to the North Sulphur River last Friday and found a magnificent coprolite in situ in the otherwise soft gray shale. I cleaned it up a bit, but as with most fossils from the NSR, the surrounding shale largely flaked away leaving the nearly 15 pound coprolite a fairly solid mass. Coincidentally, I had found a large isolated mosasaur tooth only a few feet from the spot two weeks prior. I positioned the tooth in one of the empty sockets and it would appear to be a fit. There had been a fairly good rain in the interim that looks to have dissolved a good portion of the matrix previously surrounding the chunk. My original instinct was that it had been deposited by a mosasaur, but the teeth marks in the jaw section look more shark-related to me. Too bad there's not a Coprolite of the Month. I am guessing that I might have a pretty good shot at it. Not quite the distinction of Vertebrate of the Month, but it's a start.
  20. Texas Pliosaur and Mosasaur teeth

    So I've gotten myself into an extremely rare deal- a mosasaur and pliosaur tooth both in the US for a small fee of 130 bucks or so (95 british pound) The goodies arrived today, and I might as well show em off. First off, we have a mosasaur tooth from the Ozan Formation of Fannin County. Knowing that the NSR flows inside Fannin County and is also part of the Ozan Formation, This tooth is probably also from the NSR itself. Although the seller didn't have time to do a full ID on the tooth and simply labeled it as unidentified, by extensive comparing with other mosasaur teeth from the area, I can promptly assume that this is cf. Tylosaurus proriger, meaning that after 11+ years of my life, I finally have a T. proriger tooth . Unless someone decides to be a donkey and counterID it. Next, we got a tooth that has been sought out for by countless collectors- a north american pliosaur tooth. As with other Texan pliosaur teeth, this one was from the Britton Formation near Dallas. Again, the seller labeled it as an unidentified pliosaur. This time though, IDing is difficult. Based on my knowledge, the two possible candidates are Brachauchenius lucasi and Polyptychodon hudsoni, which both have been found in this area. But as its hard to tell the difference between the two in teeth, I can't make a solid pinpoint. Maybe I'll just be biased and label it as cf. Brachauchenius lucasi because brachs are more iconic to me and due to the unstableness of the polyptychodon taxon. Although not as large as other's tylosaurus teeth, this one still kicks over 4 cm which is still pretty big to me. The pliosaur tooth is just over 2 cm, making it quite small but worth due to its rarity.
  21. 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
  22. Hey TFF, I know these mosasaur roots can be quite tricky to see if they have been restored/ faked roots or if they are real (well at least for me it is ) I found these mosasaur roots on matrix with the plaster to protect it and is being sold in a reliable website but was wondering if the roots of these teeth have been faked or if they are real. I just really like this piece and would really like to purchase it. Thanks guys.
  23. Texas Teeth

    Here's some of my best Texas teeth. All personal finds except for the partial Tyrannosaurid tooth. The little red tooth on the bottom is also Mosasaur.
  24. Here's a few of my finds from my last couple of Northeast Texas creek hunts. It's been pretty slow but I'm trying again tomorrow. I did find a killer Ginsu shark tooth and cool fish vert with partial process. I didn't know what the little penny trinket thing was until an older gentleman told me lol. The one vert with four pics is Pleistocene but I have no clue from what. We did find a large nest of cottonmouths where two males were fighting for a large female. We saw herds of wild hogs and had quite the kayak adventure. One kayak trip was 5 miles deep in the woods where we had to go over 7 log piles with the kayaks. I'm also unsure what the little white tooth is with multiple pics by the trinket. It has thick enamel whatever it is. Hope you enjoy the pics.
  25. Mosasaur Vert from NSR

    What kind of mosasaurus vertabrae might this be? What possible species? ( sorry about not posting this in my previous post )
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