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Found 66 results

  1. Sir David Attenborough helps discover brand new species of ichthyosaur in Lyme Regis, Dorset Echo, Jennifer Mulcahey, January 3, 2018 http://www.dorsetecho.co.uk/NEWS/15805526.Sir_David_Attenborough_helps_discover_new_species____and_you_might_recognise_the_location/ P.S., I am not responsible for the article's title. Yours, Paul H.
  2. What ichthyosaur bone is this?

    I think one is a rib, but i'm not sure about the other bits, cheers.
  3. 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 7, 2018. Class Reptilia Superorder Ichthyopterygia - The Ichthyosaurs. Triassic Ichthyosaurs Triassic Ichthyosaurs - Asia/Malaysia/Pacific Islands Arkhangelsky, M.S., et al. (2016). On the First Reliable Find of the Genus Tholodus (Reptilia: Ichthyopterygia) in the Asian Peripheral Area of the Panthalassic Ocean. Paleontological Journal, Vol.50, Number 1. Chen, X., et al. (2013). A New Triassic Primitive Ichthyosaur from Yuanan, South China. Acta Geologica Sinica, Vol.87, Number 3. Jiang, D.-Y., et al. (2008). New primitive ichthyosaurian (Reptilia, Diapsida) from the Middle Triassic of Panxian, Guizhou, southwestern China and its position in the Triassic biotic recovery. Progress in Natural Science, 18. Jiang, D.-Y., et al. (2007). The Mixosaurid Ichthyosaur Phalarodon cf. P. fraasi from the Middle Triassic of Guizhou Province, China. Journal of Paleontology, 81(3). Jiang, D.-Y., et al. (2006). A New Mixosaurid Ichthyosaur from the Middle Triassic of China. Journal of Vertebrate Paleontology, 26(1). Jiang, D.-Y., et al. (2005). A Basal Mixosaurid Ichthyosaur from the Middle Triassic of China. Palaeontology, Vol.48, Part 4. Li, C. (1999). Ichthyosaur from Guizhou, China. Chinese Science Bulletin, Vol.44, Number 14. Li, C. and H-L You (2002). Cymbospondylus from the Upper Triassic of Guizhou, China. Vertebrata PalAsiatica, 40(1). Liu, J., et al. (2013). The First Specimen of the Middle Triassic Phalarodon atavus (Ichthyosauria: Mixosauridae) from South China, Showing Postcranial Anatomy and Peri-Tethyan Distribution. Palaeontology, Vol.56, Part 4. Liu, J., et al. (2011). New Mixosaurid Ichthyosaur Specimen from the Middle Triassic of SW China: Further Evidence for the Diapsid Origin of Ichthyosaurs. Journal of Paleontology, 85(1). Long, C., et al. (2006). Gastroliths in the Triassic Ichthyosaur Panjiangsaurus from China. J.Paleont., 80(3). Maisch, M.W., et al. (2008). A well-preserved skull of Qianichthyosaurus zhoui Li, 1999 (Reptilia: Ichthyosauria) from the Upper Triassic of China and the phylogenetic position of the Toretocnemidae. N.Jb.Geol.Palaont.Abh., Vol.248/3. Motani, R. (1997). New Information on the Forefin of Utatsusaurus hataii (Ichthyosauria). J.Paleont., 71(3). Motani, R., M. Manabe and Z-M. ###### (1999). The Status of Himalayasaurus tibetensis (Ichthyopterygia). Paludicola, 2(2). Motani, R. and H. You (1998). The Forefin of Chensaurus chaoxianensis (Ichthyosauria) Shows Delayed Mesopodial Ossification. J.Paleont., 72(1). Nakajima, Y., A. Houssaye and H. Endo (2014). Osteohistology of the Early Triassic ichthyopterygian reptile Utatsusaurus hataii: Implications for early ichthyosaur biology. Acta Palaeontologica Polonica, 59(2). Sander, P.M., et al. (2011). Short-Snouted Toothless Ichthyosaur from China Suggests Late Triassic Diversification of Suction Feeding Ichthyosaurs. PLoS ONE, 6(5). (Read on-line or download a copy.) (Thanks to xonenine for finding this one.) Shang, Q.-H. and C. Li (2013). The sexual dimorphism of Shastasaurus tangae (Reptilia: Ichthyosauria) from the Triassic Guanling Biota, China. Vertebrata PalAsiatica, 51(4). Shang, Q.-H. and C. Li (2009). On the Occurrence of the Ichthyosaur Shastasaurus in the Guanling Biota (Late Triassic), Guizhou, China. Vertebrata PalAsiatica, 47(3). Shikama, T., T. Kamei and M. Murata (1978). Early Triassic Ichthyosaurus, Utatsusaurus hataii Gen. et Sp. Nov., from the Kitakami Massif, Northeast Japan. Tohoku Univ., Sci.Rept., 2nd Ser. (Geol.), Vol.48, Number 2. Triassic Ichthyosaurs - Europe (including Greenland and Siberia) Buchy, M.-C., P. Taugourdeau and P. Janvier (2004). Stomach Contents of a Lower Triassic Ichthyosaur from Spitzbergen. Oryctos, Vol.5. Dal Sasso, C., et al. (2014). First Record of Ichthyosaurs in Sicily (Upper Triassic of Monte Scalpello, Catania Province). Revista Italiana di Paleontologia e Stratigrafia, Vol.120, Number 1. Fischer, V., et al. (2014). Ichthyosaurs from the French Rhaetian Indicate a Severe Turnover Across the Triassic-Jurassic Boundary. Hurum, J.H., et al. (2014). The first recovered ichthyosaur from the Middle Triassic of Edgeøya, Svalbard. Norwegian Petroleum Directorate Bulletin, Number 11. Karl, H.-V., et al. (2014). A large ichthyosaur vertebra from the lower Kӧssen Formation (Upper Norian) of the Lahneweisgraben near Garmisch-Partenkirchen, Germany. Gӧttingen Contributions to Geosciences, 77. Lomax, D.R. (2015). A taxonomic review of Ichthyosaurus from Somerset. Masters Thesis - The University of Manchester. Maisch, M.W. and A.T. Matzke (2001). The Cranial Osteology of the Middle Triassic Ichthyosaur Contectopalatus from Germany. Palaeontology, Volume 44, Part 6. Maisch, M.W. and A.T. Matzke (2000). The mixosaurid ichthyosaur Contenctopalatus from the Middle Triassic of the German Basin. Lethaia, Vol.33. Maisch, M.W., A.T. Matzke and W. Brinkmann (2006). The otic capsule of the Middle Triassic ichthyosaur Mixosaurus from Monte San Giorgio (Switzerland): New evidence on the braincase structure of basal ichthyosaurs. Eclogae geol.Helv., 99. Motani, R. (1998). First Complete Forefin of the Ichthyosaur Grippia longirostris from the Triassic of Spitsbergen. Palaeontology, Vol.41, Part 4. Sander, P.M. (1989). The Large Ichthyosaur Cymbospondylus buchseri, sp.nov., from the Middle Triassic of Monte San Giorgio (Switzerland), With a Survey of the Genus in Europe. Journal of Vertebrate Paleontology, 9(2). Schmitz, L. (2005). The Taxonomic Status of Mixosaurus nordenskioeldii (Ichthyosauria). Journal of Vertebrate Paleontology, 25(4). Triassic Ichthyosaurs - North America Brinkman, D.B., Z. Xijin, and E.L. Nicholls (1992). A Primitive Ichthyosaur from the Lower Triassic of British Columbia, Canada. Palaeontology, Vol.35, Part 2. Druckenmiller, P.S., et al. (2014). An Upper Triassic (Norian) Ichthyosaur (Reptilia, Ichthypterygia) from Northern Alaska and Dietary Insight Based on Gut Contents. Journal of Vertebrate Paleontology, 34(6). Fröbisch, N.B., et al. (2013). Macropredatory ichthyosaur from the Middle Triassic and the origin of modern trophic networks. PNAS, Vol.110, Number 4. Kelly, N.P., et al. (2016). A new Lower Triassic ichthyopterygian assemblage from Fossil Hill, Nevada. PeerJ, 4:e1626. Lucas, S.G. (2002). Toretocnemus, A Late Triassic Ichthyosaur from California, U.S.A. and Sonora, Mexico. In: Upper Triassic Stratigraphy and Paleontology. Heckert, A.B. and S.G. Lucas (eds.), New Mexico Museum of Natural History and Science, Bulletin Number 21. Nicholls, E.L. and M. Manabe (2004). Giant Ichthyosaurs of the Triassic - A New Species of Shonisaurus from the Pardonet Formation (Norian: Late Triassic) of British Columbia. Journal of Vertebrate Paleontology, 24(4). General Triassic Ichthyosaurs Motani, R. (1997). Phylogeny of the Ichthyosauria (Amniota:Reptilia) With Special Reference to Triassic Forms. Ph.D. Thesis - University of Toronto. Motani, R., et al. (2013). Absence of Suction Feeding Ichthyosaurs and its Implications for Triassic Mesopelagic Paleoecology. PLoS ONE, 8(12). Jurassic Ichthyosaurs Jurassic Ichthyosaurs - Europe (including Greenland and Siberia) Angst, D., et al. (2010). An ichthyosaur skull from the Late Jurassic of Svalbard. Bull.soc.geol. France, Vol.181, Number 5. Arkhangelsky, M.S. (1999). On an Ichthyosaur from the Callovian Stage of the Volga Region near Saratov. Paleontological Journal, Vol.33, Number 1. Arkhangelsky, M.S. and N.G. Zverkov (2014). On a New Ichthyosaur of the Genus Undorosaurus. Proceedings of the Zoological Institute RAS, Vol.318, Number 3. Bardet, N. and M. Fernandez (2000). A New Ichthyosaur from the Upper Jurassic Lithographic Limestones of Bavaria. J.Paleont., 74(3). Brusatte, S.L., et al. (2015). Ichthyosaurs from the Jurassic of Skye, Scotland. Scottish Journal of Geology, 51(1). Caine, A. and M.J. Benton (2011). Ichthyosauria from the Upper Lias of Strawberry Bank, England. Palaeontology, Vol.54, Part 5. Chiarenza, A.A., et al. (2013). The Early Jurassic ichthyosaur Stenopterygius in the collections of the Museu di Scienze della Terra, Università di Catania (Italy). Bollettino della Società Paleontologica Italiana, 52(1). Danise, S., R.J. Twitchett and K. Matts (2014). Ecological succession of a Jurassic shallow-water ichthyosaur fall. Nature Communications, 15:4789. Druckenmiller, P.S., et al. (2012). Two new opthalmosaurids (Reptilia: Ichthyosauria) from the Agardhfjellet Formation (Upper Jurassic: Volgian/Tithonian), Svalbard, Norway. Norwegian Journal of Geology, Vol.92. Forrest, R. and N. Oliver (2003). Ichthyosaurs and pleiosaurs from the Lower Spilsby Sandstone Member (Upper Jurassic), north Lincolnshire. Proceedings of the Yorkshire Geological Society, Vol.54, Part 4. Lingham-Soliar, T. (1999). Rare soft tissue preservation showing fibrous structures in an ichthyosaur from the Lower Lias (Jurassic) of England. Proc. Royal Soc. London B, 266. Lomax, D.R. (2017). A new leptonectid ichthyosaur from the Lower Jurassic (Hettangian) of Nottinghamshire, England, UK, and the taxonomic usefulness of the ichthyosaurian coracoid. Journal of Systematic Paleontology. Lomax, D.R. (2015). A taxonomic review of Ichthyosaurus from Somerset. Masters Thesis - The University of Manchester. Lomax, D.R. (2010). An Ichthyosaurus (Reptilia, Ichthyosauria) With Gastric Contents from Charmouth, England: First Report of the Genus from the Pliensbachian. Paludicola, 8(1). Maisch, M.W. and A.G. Reisdorf (2006). Evidence for the longest stratigraphic range of a post-Triassic Ichthyosaur: a Leptonectes tenuirostris from the Pliensbachian (Lower Jurassic) of Switzerland.Geobios, 39. Maisch, M.W. and A.T. Matzke (2003). The Cranial Osteology of the Ichthyosaur Leptonectes cf. tenuirostris from the Lower Jurassic of England. Journal of Vertebrate Paleontology, 23(1). Maisch, M.W., et al. (2008). A large skull of Ichthyosaurus (Reptilia: Ichthyosauria) from the Lower Sinemurian (Lower Jurassic) of Frick (NW Switzerland). Swiss J.Geosci., 101. Martill, D.M. (1995). An Ichthyosaur With Preserved Soft Tissue from the Sinemurian of Southern England. Palaeontology, Vol.38, Part 4. Martill, D.M. (1987). A Taphonomic and Diagenetic Case Study of a Partially Articulated Ichthyosaur. Palaeontology, Vol.30, Part 3. Martin, J.E., et al. (2015). A mysterious giant ichthyosaur from the lowermost Jurassic of Wales. Acta Palaeontologica Polonica, 60(4). Maxwell, E.E., M.S. Fernández and R.R. Schoch (2012). First Diagnostic Marine Reptile Remains from the Aalenian (Middle Jurassic): A New Ichthyosaur from Southwestern Germany. PLoS ONE, 7(8). McGowan, C. (1994). The Taxonomic Status of the Upper Liassic Ichthyosaur Eurhinosaurus longirostris. Palaeontology, Vol.37, Part 4. McGowan, C. (1989). Leptopterygius tenuirostris and Other Long-Snouted Ichthyosaurs from the English Lower Lias. Palaeontology, Vol.32, Part 2. McGowan, C. (1974). A Revision of the Latipinnate Ichthyosaurs of the Lower Jurassic of England. Life Sciences Contribution 100, Royal Ontario Museum. McGowan, C. and A.C. Milner (1999). A New Pliensbachian Ichthyosaur from Dorset, England. Palaeontology, Vol.42, Part 5. Pollard, J.E. (1968). The Gastric Contents of an Ichthyosaur from the Lower Lias of Lyme Regis, Dorset. Reisdorf, A.G., M.W. Maisch and A. Wetzel (2011). First record of the leptonectid ichthyosaur Eurhinosaurus longirostris from the Early Jurassic of Switzerland and its stratigraphic framework. Swiss J.Geosci., 104. Roberts, A.J., et al. (2014). A New Upper Jurassic Opthalmosaurid Ichthyosaur from the Splottsmøya Member, Agardhfjellet Formation of Central Spitsbergen. PLoS ONE, 9(8). Smith, A.S. (2010). Rare Ichthyosaur and Plesiosaur Material from the Lower Jurassic of Ireland. Irish Journal of Earth Sciences, 28. Tyborowski, D. (2016). A new opthalmosaurid ichthyosaur from the Late Jurassic of Owadow-Brzezinki Quarry, Poland. Acta Palaeontologica Polonica, 61(4). van Loon, A.J. (2013). Ichthyosaur embryos outside the mother body: not due to carcass explosion but to carcass implosion. Palaeobio. Palaeoenv., 93. Zverkov, N.G., et al. (2015). On the Upper Jurassic Ichthyosaur Remains from the Russian North. Proceedings of the Zoological Institute RAS, Vol.319, Number 1. Jurassic Ichthyosaurs - North America Massare, J.A. and H.A. Young (2005). Gastric Contents of an Ichthyosaur from the Sundance Formation (Jurassic) of Central Wyoming. Paludicola, 5(1). O'Keefe, F.R., et al. (2009). A Plesiosaur Containing an Ichthyosaur Embryo as Stomach Contents from the Sundance Formation of the Bighorn Basin, Wyoming. Journal of Vertebrate Paleontology, 29(4). Parris, D.C. and B.S. Grandstaff (2000). An Ichthyosaur Bone from the Jurassic of South Dakota. Proceedings of the South Dakota Academy of Science, Vol.79. Sissons, R.L., et al. (2015). An Upper Jurassic ichthyosaur (Ichthyosauria: Opthalmosauridae) from the Bowser Basin, British Columbia. Canadian Journal of Earth Sciences, 53(1). Jurassic Ichthyosaurs - South America/Central America/Caribbean Buchy, M-C., and J.L.M. Oliva (2009). Occurrence of a second ichthyosaur genus (Reptilia: Ichthyosauria) in the Late Jurassic Gulf of Mexico. Boletin de la Sociedad Geologica Mexicana, Vol.62, Number 2. Fernandez, M.S. and E.E. Maxwell (2012). The genus Arthropterygius Maxwell (Ichthyosauria: Opthalmosauridae) in the Late Jurassic of the Neuquén Basin, Argentina. Geobios, 45. Fernandez, M.S. and M. Iturralde-Vinent (2000). An Oxfordian Ichthyosauria (Reptilia) from Vinales, Western Cuba: Paleobiogeographic Significance. Journal of Vertebrate Paleontology, 20(1). General Jurassic Ichthyosaurs Caldwell, M.W. (1997). Limb ossification patterns of the ichthyosaur Stenopterygius, and a discussion of the proximal tarsal row of ichthyosaurs and other neodiapsid reptiles. Zoological Journal of the Linnean Society, 120. Marek, R.D., et al. (2015). The Skull and Endocranium of a Lower Jurassic Ichthyosaur Based on Digital Reconstructions. Palaeontology, Vol.58, Part 4. McGowan, C. (1994). The Taxonomic Status of the Upper Liassic Ichthyosaur Eurhinosaurus longirostris. Palaeontology, Vol.37, Part 4. Wahl, W.R. (2009). Taphonomy of a Nose Dive: Bone and Tooth Displacement and Mineral Accretion in an Ichthyosaur Skull. Paludicola, 7(3). Cretaceous Ichthyosaurs Cretaceous Ichthyosaurs - Africa/Middle East Fischer, V., et al. (2013). A basal thunnosaurian from Iraq reveals disparate phylogenetic origins for Cretaceous ichthyosaurs. Biology Letters, 9. Cretaceous Ichthyosaurs - Australia/New Zealand Choo, B. (1999). Cretaceous ichthyosaurs from Western Australia. Records of the Western Australian Museum, Supplement Number 57. Fleming, C.A., D.R. Gregg and S.P. Welles (1971). New Zealand Ichthyosaurs - A Summary, Including New Records from the Cretaceous. New Zealand Journal of Geology and Geophysics, 14(4). Kear, B.P., et al. (2003). Unusual gut contents in a Cretaceous ichthyosaur. Proc. Royal Soc. London B (Suppl.), 270. Maxwell, E.E., M.W. Caldwell and D.L. Lamoureaux (2011). Tooth Histology in the Cretaceous Ichthyosaur Platypterygius australis , and Its Significance for the Conservation and Divergence of Mineralized Tooth Tissues in Amniotes. Journal of Morphology, 272. (Thanks to Troodon for pointing this one out.) Sachs, S. and J.A. Grant-Mackie (2003). An ichthyosaur fragment from the Cretaceous of Northland, New Zealand. Journal of the Royal Society of New Zealand, Vol.33, Number 1. Zammit, M. (2011). The Australian Cretaceous ichthyosaur Platypterygius australis: understanding its taxonomy, morphology and palaeobiology. Ph.D. Thesis - The University of Adelaide. Zammit, M. and B.P. Kear (2011). Healed bite marks on a Cretaceous ichthyosaur. Acta Palaeontologica Polonica, 56(4). Cretaceous Ichthyosaurs - Europe (including Greenland and Siberia) Arkhangelsky, M.S., et al. (2008). On Ichthyosaur Remains from the Cretaceous of the Voronezh Region. Paleontological Journal, Vol.42, Number 3. Ensom, P.C., et al. (2009). The age and identity of an ichthyosaur reputably from the Purbeck Limestone Group, Lower Cretaceous, Dorset, southern England. Cretaceous Research, 30. Fischer, V. (2016). Taxonomy of Platypterygius campylodon and the diversity of the last ichthyosaurs. PeerJ, 4:e2604. (Thanks to doushantuo for pointing this one out!) Fischer, V. (2012). New data on the ichthyosaur Platypterygius hercynicus and its implications for the validity of the genus. Acta Palaeontologica Polonica, 57(1). Fischer, V., et al. (2014). Simbirskiasaurus and Pervushovisaurus reassessed: implications for the taxonomy and cranial osteology of Cretaceous platypterygiine ichthyosaurs. Zoological Journal of the Linnean Society, 271. Fischer, V., et al. (2014). High Diversity in Cretaceous Ichthyosaurs from Europe Prior to Their Extinction. PLoS ONE, 9(1). Fischer, V., et al. (2013). A new Lower Cretaceous ichthyosaur from Russia reveals skull shape conservatism within Opthalmosaurinae. Geol.Mag. Fischer, V., et al. (2012). New Opthalmosaurid Ichthyosaurs from the European Lower Cretaceous Demonstrate Extensive Ichthyosaur Survival across the Jurassic-Cretaceous Boundary. PLoS ONE, 7(1). Fischer, V., et al. (2010). The first definite record of a Valangian ichthyosaur and its implications on the evolution of post-Liassic Ichthyosauria. Cretaceous Research, xxx. (Article in press) Cretaceous Ichthyosaurs - North America Adams, T.L. and A.R. Fiorillo (2010). Platypterygius Huene, 1922 (Ichthyosauria, Opthalmosauridae) from the Late Cretaceous of Texas, USA. Palaeontologia Electronica, Vol.14, Issue 3. Lopuchowycz, V.B. and J.A. Massare (2002). Bone Microstructure of a Cretaceous Ichthyosaur. Paludicola, 3(4). Maxwell, E.E. and M.W. Caldwell (2006). A New Genus of Ichthyosaur from the Lower Cretaceous of Western Canada. Palaeontology, Vol.49, Part 5. Maxwell, E.E. and M.W. Caldwell (2003). First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap. Proc. Royal Soc. London B (Suppl.), 270. McNulty, C.L. and B.H. Slaughter (1962). An Ichthyosaurian Centrum from the Albian of Texas. Journal of Paleontology, Vol.36, Number 2. (Thanks to Lance Hall for pointing me to this one.) Cretaceous Ichthyosaurs - South America/Central America/Caribbean Pardo Perez, J.M. (2015). Ichthyosaurs from the Early Cretaceous (Hauterivian-Barremian) from the western border of the Tyndall Glacier in the Torres del Paine National Park, Southernmost Chile. Ph.D. Dissertation, Ruprecht-Karls-Universitat, Heidelberg. (258MB) Stinnesbeck, W., et al. (2014). A Lower Cretaceous ichthyosaur graveyard in deep marine slope channel deposits at Torres del Paine National Park, southern Chile. Geological Society of America Bulletin, published on-line. General Cretaceous Ichthyosaurs Zammit, M. (2012). Cretaceous Ichthyosaurs: Dwindling Diversity, or the Empire Strikes Back? Geosciences 2012, 2. General Ichthyosaurs Appleby, R.M. (1979). The Affinities of Liassic and Later Ichthyosaurs. Palaeontology, Vol.22, Part 4. Cleary, T.J., et al. (2015). The Fossil Record of Ichthyosaurs, Completeness, Metrics and Sampling Biases. Palaeontology, Vol.58, Part 3. Fischer, V., et al. (2016). Exctinction of fish-shaped marine reptiles associated with reduced evolutionary rates and global environmental volatility. Nature Communications, 7(10825). Fleming, C.A., D.R. Gregg and S.P. Welles (1971). New Zealand Ichthyosaurs - A Summary, Including New Records from the Cretaceous. New Zealand Journal of Geology and Geophysics, 14(4). Houssaye, A., et al. (2014). A New Look at Ichthyosaur Long Bone Microanatomy and Histology: Implications for Their Adaptation to an Aquatic Life. PLoS ONE, 9(4). Lawrence, J.D. (2008). A Total Evidence Analysis of the Evolutionary History of the Thunnosaur Ichthyosaurs.(Masters Thesis - Bowling Green State University). Lingham-Soliar, T. and G. Plodowski (2007). Taphonomic evidence for high-speed adapted fins in thunniform ichthyosaurs. Naturwissenschaften, 94. Maisch, M.W. (2010). Phylogeny, systematics and origin of the Ichthyosauria - the state of the art. Palaeodiversity, 3. Maisch, M.W. and A.T. Matzke (2000). The Ichthyosauria. Stuttgarter Beitr.Naturk., Ser.B, Number 298. (160 pages) McGowan, C. (1992). The Ichthyosaurian Tail: Sharks Do Not Provide an Appropriate Analogue. Palaeontology, Vol.35, Part 3. Motani, R. (1999). On the Evolution and Homologies of Ichthyopterygian Forefins. Journal of Vertebrate Paleontology, 19(1). Motani, R. (1997). Phylogeny of the Ichthyosauria (Amniota:Reptilia) With Special Reference to Triassic Forms. Ph.D. Thesis - University of Toronto. Motani, R., B.M. Rothschild and W. Wahl (1999). Large eyeballs in diving ichthyosaurs. Nature, Vol.402. Smithwick, F.M., et al. (2017). On the Purported Presence of Fossilized Collagen Fibres in an Ichthyosaur and a Theropod Dinosaur. Palaeontology, Vol.60, Part 3. (Thanks to doushantuo for locating this one!) Taylor, M.A. (1987). A Reinterpretation of Ichthyosaur Swimming and Buoyancy. Palaeontology, Vol.30, Part 3. van Loon, A.J. (2013). Ichthyosaur embryos outside the mother body: not due to carcass explosion but to carcass implosion. Palaeobio. Palaeoenv., 93. Wahl, W.R. (2009). Taphonomy of a Nose Dive: Bone and Tooth Displacement and Mineral Accretion in an Ichthyosaur Skull. Paludicola, 7(3).
  4. Jurassic Bone Block ID? (Yorkshire, UK)

    Hi all, I recently found this massive bowling ball sized rock at Saltwick Bay near Whitby on the Yorkshire coast (Northern England). It is lower to middle Jurassic, i think about 180-170 million years old (possibly the Whitby Mudstone Formation). As you can see it it's full of various bones, which occur on almost all sides of the rock so they are probably running right through it. Prep for this one is going to be a nightmare i can tell and i don't have the right tools, but for now i really just want to try and figure out what i've got. I think it's fair to assume the bones are associated. The options for this bit of coast are fish (Gyrosteus), ichthyosaur, marine crocodile, plesiosaur or dinosaur. I was hoping based on the cross sectional shapes of some of the bones, and the texture of the bone itself, someone would be able to narrow down what it might be. Fish or reptile would be the first thing to determine. My obvious first assumption was marine reptile, but some of the fish on the Yorkshire coast like Gyrosteus are also huge (5m long) and i'm not very familiar with their bone structure. In this picture, i thought the rectangular bone towards the bottom might be a vertebra in cross-section. If so, from what? Could it be the edge of an ichthyosaur vertebra before it dips down in the centre? This bone is the biggest in the block, about 8 cm long and 3 cm thick. Continued in the next post!
  5. Hi there. I recently purchased a big box full of shale, containing a number of disarticulated ichthyosaur bones from South Wales. Mostly ribs, but there's also a humerus and one or two other unidentified bones too. It's not an amazing piece, but I'd consider it good practice. I've been trying to work out how to prep it. It's in many pieces, and putting them together is a bit of a task in itself! As you can see from this terrible photo, I've made some progress. I've numbered the joins so that their positions can be found easily, and drawn in marker pen on the surface of the shale where the bones appear to run beneath. I'd appreciate any advice from anyone that's done this sort of thing before. This is how I intend on proceeding: 1. Complete the jigsaw - and hope it all fits together! 2. Prep each piece to expose the bones 3. Set the pieces onto some kind of backing - not sure what? 4. Tidy up the prep, and use epoxy clay to fill the cracks. If anyone has any suggestions, I'd be very grateful. I've never dealt with any icthyosaur material before.
  6. unknown vert

    Can anyone help me id this vert. It came with a batch of Ichthyosaur bones I bought from Dorset, but it not like Ichthyosaur verts I usually get.
  7. My ichthyosaurus collection

    Here is my small ichthyosaur collection. I keep all my fossils in 19th century draws as it fits with our living room which is a Victorian cabinet of curiosities or Wunderkammer. Paddle basioccipital
  8. Ichthyosaur tooth

    From the album Holzmaden

    Another small ( 1cm long) and bit damaged Ichthyosaur tooth from the quarry Kromer near Holzmaden (lower Jurassic) But the root is nice and well preserved ! Some more images:
  9. An awesome tooth !

    Yesterday I was again in the quarry Kromer near Holzmaden (Lower Jurassic) and I found a really nice tooth ! The tooth is about 2 cm long and 1 cm wide ! I think its one of the biggest tooth I have ever found ! Its a Temnodontosaurus tooth, which is a large Ichthyosaur. In the "Schlacke" (a specific layer) you can sometimes find smaller teeth but such big teeth in a good condition are very rare. I am really happy about this one Especially because there wasnt much material there, so it was a lucky find ! The prep took about 4 hours. - The quarry, where I find this teeth will close during winter so the tooth is also a great completion of this year !
  10. What is this?

    I found this very small thing on my fossil of two ichthyosaur rib bones. It's very shiny. It is From Jurassic sediment (200 million years old) at Lavernock, South Wales, U.K. 5p coin for scale.
  11. I have a question if Ichthyosaur is considered a reptile how come it gave birth to its young live? What separates it from mammals?
  12. Title says it all really. Can anybody help? @abyssunder @doushantuo @Fruitbat Thanks!
  13. Fossil of ‘fish lizard’ from Jurassic-era found: Researchers relate India to Gondawana, The TeCake, October 27, 2017 https://tecake.in/news/science/first-jurassic-era-fish-lizard-fossil-discovered-gujarats-kutch-area-39424.html First Jurassic ichthyosaur fossil found in India https://phys.org/news/2017-10-jurassic-ichthyosaur-fossil-india.html Prasad, G.V.R., Pandey, D.K., Alberti, M., Fürsich, F.T., Thakkar, M.G., and Chauhan, G.D. 2017. Discovery of the first ichthyosaur from the Jurassic of India: Implications for Gondwanan palaeobiogeography. PLoS ONE 12(10): e0185851. doi.org/10.1371/journal.pone.0185851 http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0185851 Yours, Paul H.
  14. Ichthyosaur tooth

    From the album Albian vertebrates of Ukraine

    Partial ichthyosaur tooth, supposedly Platypterygius (however now it is a wastebasket taxon)
  15. Ichthyosaur tooth

    From the album Holzmaden

    Another Ichthyosaur tooth from the lower Jurassic of Holzmaden / quarry Kromer. Its about 1.3 cm long and has a very nice root ! Some more pictures:
  16. Associated Ichthyosaur Bones

    From the album Holzmaden

    This picture shows associated Ichthysaur bones from the quarry Kromer near Holzmaden (Lower Jurassic). It was found by me last year and was prepped by Roger (@Ludwigia). The prep work took about 10 hours. The associated vertebrae are around 13 cm long and at the maximum the piece is 20 cm long. Beside those vertebrae there are also Ichthyosaur ribs and Ichthyosaur paddle bones on the stone. Maybe it was a small Stenopterygius or a young one from another species. The vertebrae: The vertebrae and the ribs: The paddle bones: Some more detailed pictures: This piece is the best one in my collection until now and the vertebrate find of August 2017 !
  17. Ichthyosaur tooth

    From the album Holzmaden

    A small ( 0.7 cm long) Ichthyosaur tooth from the quarry Kromer near Holzmaden (Lower Jurassic):
  18. Ichthyosaur vertebra

    From the album Holzmaden

    A 3 cm long well preserved Ichthyosaur vertebra from the lower Jurassic in Holzmaden. I found it last year and it was prepped by Roger (Ludwigia). The other side: And from another angle:
  19. I'd like to share my small Ichthyosaur collection. It includes Verts, ribs, a paddle bone and two teeth. These are from lots of different UK locations.
  20. So I drew a paleo-reconstruction of a noteworthy but sparsely-known apex predator Temnodontosaurus eurycephalus, which was believed to be the top apex of the Early Jurassic until the rise of proto-pliosaurs like Rhomaelosaurus. Unlike its famous squid sucking sister T. platydon (metaphor, not literally), T. eurycephalus had a thick skull with deep jaws and large robust teeth suggesting a macropredatory diet and probably fed on other ichthyosaurs, plesiosaurs, and anything else that it could swallow (Also, growing lengths of over 30 feet, it probably could swallow everything other than another Temnodontosaurus) This is actually my first time finishing a paleo-reconstruction using only a pen tablet and photoshop (All my other drawings were either unfinished or done on paper). I used a Huion 1060PLUS drawing tablet and Photoshop CS6 to draw this. Took at least 3 hours to draw, and I heavily referenced the holotype skull to draw the head. Turned out pretty neat, but I don't know if I should color/shade this.
  21. Ichthyosaur tooth

    From the album Holzmaden

    A 1 cm long Ichthyosaur tooth from the lower Jurassic of Holzmaden (quarry Kromer). Another picture:
  22. Ichthyosaur Teeth?

    I purchased these as Ichthyosaur teeth but i wanted to post here to make sure that that's exactly what they are. All are from the Rhaetic period of the Upper Triassic. Age=210 Million Years. Origin=Gloucestershire UK. Preparation=Gently Cleaned.
  23. Ichthyosaur tooth

    From the album Holzmaden

    A 1.2 cm long Ichthyosaur tooth with a nice structure. I found it in the quarry Kromer near Holzmaden (Lower Jurassic). Another image:
  24. Ichthyosaur tooth

    From the album Holzmaden

    A beautiful 1.3 cm long Ichthyosaur tooth from the lower Jurassic of Holzmaden (quarry Kromer). From another angle: