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Dear Guys, Today I found very interesting and also simply looking tusk fragment in Varena town (South Lithuania) near my home. Its length is 8,3 cm and it has thick bone layer in the both ends. It is almost straight and by appearance of piece I see that it was long and sharp. The age of fossil is Late Pleistocene, the last glaciation times. Any idea what is this? Best Regards Domas
Trying to figure if this is a walrus tusk or whale tooth - doesn't look like most of the whale teeth I've seen. I'm inclined more towards a sperm whale. Position in the jaw? This is an inshore ocean/ estuary find from GA. Same area as shark teeth. Thanks for any help.
Fruitbat posted a topic in DocumentsThese 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 firstname.lastname@example.org 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 May 15, 2017. Order Carnivora Clade Pinnipedia - Seals, Walruses and their Relatives Family undetermined Northover, J.M. (2010). Skeletal Morphology and Evidence for Swimming in a Fossil Stem Pinniped, Puijila darwini, from the Canadian High Arctic. Masters Thesis - Carleton University. Rybczynski, N., M.R. Dawson and R.H. Tedford (2009). A semi-aquatic Arctic mammalian carnivore from the Miocene epoch and origin of the Pinnipedia. Nature (Letters), Vol.458 'Enaliarctines' Barnes, L.G. (1992). A New Genus and Species of Middle Miocene Enaliarctine Pinniped (Mammalia, Carnivora, Otariidae) from the Astoria Formation in Coastal Oregon.Contributions in Science, Natural History Museum of Los Angeles County, Number 431. Barnes, L.G.(1990). A New Miocene Enaliarctine Pinniped of the Genus Pteronarctos (Mammalia: Otariidae) from the Astoria Formation, Oregon.Contributions in Science, Natural History Museum of Los Angeles County, Number 422. Barnes, L.G. (1989). A New Enaliarctine Pinniped from the Astoria Formation, Oregon, and a Classification of the Otariidae (Mammalia: Carnivora). Contributions in Science, Natural History Museum of Los Angeles County, Number 403. Barnes, L.G. (1979). Fossil Enaliarctine Pinnipeds (Mammalia: Otariidae) from Pyramid Hill, Kern County, California. Contributions in Science, Natural History Museum of Los Angeles County, Number 318. Berta, A. (1994). New Specimens of the Pinnipediform Pteronarctos from the Miocene of Oregon. Smithsonian Contributions to Paleobiology, Number 78. Berta, A. (1991). New Enaliarctos* (Pinnipedimorpha) from the Oligocene and Miocene of Oregon and the Role of "Enaliarctids" in Pinniped Phylogeny. Smithsonian Contributions to Paleobiology, Number 69. Cullen, T. (2012). Comparative description of a female Enaliarctos emlongi (Carnivora, Pinnipedimorpha) from the mid-Miocene of Oregon and the evolution of sexual dimorphism within Pinnipedia. Masters Thesis - Carleton University, Ottawa. Cullen, T., et al. (2014). Early Evolution of Sexual Dimorphism and Polygyny in Pinnipedia. Evolution. Mitchell, E. and R.H. Tedford (1973). The Enliarctinae: A New Group of Extinct Aquatic Carnivora and a Consideration of the Origin of the Otariidae. Bulletin of the American Museum of Natural History, Vol.151, Article 3. Superfamily Otarioidea Family Odobenidae - Walruses Odobenidae - Asia/Malaysia/Pacific Islands Takeyama, K.-i. and T. Ozawa (1984). A New Miocene Otarioid Seal from Japan. Proc. Japan Acad., Series B, Vol.60, Number 3. Tanaka, Y. and N. Kohno (2015). A New Late Miocene Odobenid (Mammalia: Carnivora) from Hokkaido, Japan Suggests Rapid Diversification of Basal Miocene Odobenids. PLoS ONE, 10(8). (Thanks to Boesse for pointing this one out!) Odobenidae - Europe (including Greenland) Borissiak, A. (1930). A fossil walrus from the Okhotsk coast. Annals Russ.Paleontol.Soc., 8. Rutten, L. (1907). On fossil Trichechids from Zealand and Belgium. KNAW, Proceedings, 10I. Odobenidae - North America Barnes, L.G. (1988). A New Fossil Pinniped (Mammalia: Otariidae) from the Middle Miocene Sharktooth Hill Bonebed, California. Contributions in Science, Natural History Museum of Los Angeles County, Number 396. Barnes, L.G. (1971). Imagotaria (Mammalia, Otariidae) from the Late Miocene Santa Margarita Formation near Santa Cruz, California. PaleoBios, Number 11. Barnes, L.G. and R.E. Raschke (1991). Gomphotaria pugnax, a New Genus and Species of Late Miocene Dusignathine Otariid Pinniped (Mammalia: Carnivora) from California. Contributions in Science, Natural History Musueum of Los Angeles County, Number 426. Bouchard, M.A., C.R. Harington and J.-P. Gilbault (1993). First evidence of walrus (Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec. Can.J. Earth Sci., 30. Deméré, T.A. and A. Berta (2001). A Reevaluation of Proneotherium repenningi from the Miocene Astoria Formation of Oregon and its Position as a Basal Odobenid (Pinnipedia: Mammalia). Journal of Vertebrate Paleontology, 21(2). ######, A.S., et al. (1999). The Late Wisconsinan and Holocene Record of Walrus (Odobenus rosmarus) from North America: A Review with New Data from Arctic and Atlantic Canada. Arctic, Vol.52, Number 2. Harington, C.R. and G. Beard (1992). The Qualicum walrus: a Late Pleistocene walrus (Odobenus rosmarus) skeleton from Vancouver Island, British Columbia, Canada. Ann.Zool.Fennici, 28. Harington, C.R., T.W. Anderson and C.G. Rodrigues (1993). Pleistocene Walrus (Odobenus rosmarus) from Forteau, Labrador. Geographie physique et Quaternaire, Vol.47, Number 1. Kellogg, R. (1921). A New Pinniped from the Upper Pliocene of California. Journal of Mammalogy, Vol..2, Number 4. Miller, R.F. (1997). New Records and AMS Radiocarbon Dates on Quaternary Walrus (Odobenus rosmarus) from New Brunswick. Géographie physique et Quaternaire, Vol.51, Number 1. Mitchell, E.D. (1961). A New Walrus from the Imperial Pliocene of Southern California: With Notes on Odobenid and Otariid Humeri. Los Angeles County Museum Contributions in Science, Number 44. General Odobenidae Boessenecker, R.W. and M. Churchill (2013). A Reevaluation of the Morphology, Paleoecology, and Phylogenetic Relationships of the Enigmatic Walrus Peligarctos. PLoS ONE, Vol.8, Issue 1. (Thanks to Boesse for sharing this one!) Deméré, T.A. (1994). The Family Odobenidae: A Phylogenetic Analysis of Fossil and Living Taxa. In: Contributions in Marine Mammal Paleontology Honoring Frank C. Whitmore, Jr. Berta, A. and T.A. Demere (eds.). Proc. San Diego Soc.Nat.Hist., 99. Loch, C, et al. (2016). Enamel ultrastructure of fossil and modern pinnipeds: evaluating hypotheses of feeding adaptations in the extinct walrus Pelagiarctos. Sci.Nat., 103(5-6). Wyss, A.R. (1987). The Walrus Auditory Region and the Monophyly of Pinnipeds. American Museum Novitates, Number 2871. Family Otariidae - Fur Seals, Sea Lions and Their Relatives Boessenecker, R.W. and M. Churchill (2015). The oldest known fur seal. Biol.Lett., 11. Subfamily Arctocephalinae - Fur Seals Beentjes, M.P. (1989). Evolutionary Ecology of the New Zealand Fur Seal (Arctocephalus forsteri) and hooker's Sea Lion (Phocarctos hookeri). Ph.D. Thesis - University of Otago. Berta, A. and T.A. Deméré (1986). Callorhinus gilmorei n.sp. (Carnivora: Otariidae) from the San Diego Formation (Blancan) and its implication for otariid phylogeny. Transactions of the San Diego Society of Natural History, Vol.21, Number 7. Subfamily Otariinae - Sea Lions Barnes, L.G., C.E. Ray and I.A. Koretsky (2005). A New Pliocene Sea Lion, Proterozetes ulysses (Mammalia: Otariidae) from Oregon, USA. In: Mesozoic and Cenozoic Vertebrates and Paleoenvironments. Tributes to the career of Prof. Dan Grigorescu. Csiki, Z. (ed.), Ars Docendi. Beentjes, M.P. (1989). Evolutionary Ecology of the New Zealand Fur Seal (Arctocephalus forsteri) and hooker's Sea Lion (Phocarctos hookeri). Ph.D. Thesis - University of Otago. Deméré, T.A. and A. Berta (2005). New Skeletal Material of Thalassoleon (Otariidae: Pinnipeda) from the Late Miocene-Early Pliocene (Hemphillian) of California. Bull. Fla. Mus. Nat. Hist. 45(4). Harington, C.R., et al. (2004). A late Pleistocene Steller Sea Lion (Eumetopias jubatus) from Courtenay, British Columbia: its death, associated biota and and paleoenvironment. Can.J. Earth Sci., 41. Worthy, T.H. (1992). Fossil Bones of hooker's Sea Lions in New Zealand Caves. New Zealand Natural Sciences, 19. General Otariidae Churchill, M., R.W. Boessenecker and M.T. Clementz (2014). Colonization of the Southern Hemisphere by fur seals and sea lions (Carnivora: Otariidae) revealed by combined evidence phylogenetic and Bayesian biogeographical analysis. Zoological Journal of the Linnean Society, 172. Repenning, C.A. and R.H. Tedford (1977). Otarioid Seals of the Neogene. U.S. Geological Survey, Professional Paper 992. Sanfelice, D. and S.J. Drehmer (2013). Interpretation of anatomical characters in phylogenetic analysis of Pinnipedia, with emphasis on Otariidae (Mammalia, Carnivora). Biotemas, 26(2). Superfamily Phocoidea Family Desmatophocidae Barnes, L.G. (1987). An Early Miocene Pinniped of the Genus Desmatophoca (Mammalia: Otariidae) from Washington. Contributions in Science, Natural History Museum of Los Angeles County, Number 382. Barnes, L.G. (1970). A re-evaluation of mandibles of Allodesmus (Otariidae, Carnivora) from the Round Mountain Silt, Kern County, California. PaleoBios, Number 10. Deméré, T.A. and A. Berta. The Miocene Pinniped Desmatophoca oregonensis Condon, 1906 (Mammalia: Carnivora), from the Astoria Formation of Oregon. Smithsonian Contributions to Paleobiology, Number 93. Furbish, R. (2015). Something Old, Something New, Something Swimming in the Blue: An Analysis of the Pinniped Family Desmatophocidae, its Phylogenetic Position and Swimming Mode. Masters Thesis - San Diego State University. Nagao, T. (1941). An Occurrence of a Fossil Sea Lion in the Miocene Deposits of Sinano, Japan. Journal of the Faculty of Science, Hokkaido Imperial University, Series 4, Geology and mineralogy, 6(2). Family Phocidae - True Seals Subfamily Cystophorinae Koretsky, I.A. and S.J. Rahmat (2013). First Record of Fossil Cystophorinae (Carnivora, Phocidae): Middle Miocene Seals from the Northern Paratethys. Revista Italiana di Paleontologia e Stratigrafia, Vol.119, Number 3. Subfamily Devinophocinae Koretsky, I.A. and S.J. Rahmat (2015). A New Species of the Subfamily Devinophocinae (Carnivora, Phocidae) from the Central Paratethys. Revista Italiana di Paleontologia e Stratigrafia, Vol.121, Number 1. Rahmat, S.J. and I.A. Koretsky (2016). First Record of Postcranial Bones in Devinophoca emryi (Carnivora, Phocidae, Devinophocinae). Vestnik zoologii, 50(1). Subfamily Monachinae - Monk Seals, Elephant Seals and Their Relatives Amson, E. and C. de Muizon (2014). A new durophagous phocid (Mammalia: Carnivora) from the late Neogene of Peru and considerations on monachine seals phylogeny. Journal of Systematic Palaeontology, Vol.12, Issue 5. Berta, A., et al. (2015). A Reevaluation of Pliophoca etrusca (Pinnipedia, Phocidae) from the Pliocene of Italy: Phylogenetic and Biogeographic Implications. Journal of Vertebrate Paleontology, e889144. Koretsky, I.A. and D.P. Domning (2014). One of the Oldest Seals (Carnivora, Phocidae) from the Old World. Journal of Vertebrate Paleontology, 34(1). Valenzuela-Toro, A.M., et al. (2015). A New Dwarf Seal from the Late Neogene of South America and the Evolution of Pinnipeds in the Southern Hemisphere. Papers in Palaeontology. Valenzuela-Toro, A.M., et al. (2015). Elephant Seal (Mirounga sp.) from the Pleistocene of the Antofagasta Region, Northern Chile. Journal of Vertebrate Paleontology, e918883. Subfamily Phocinae Antonyuk, A.A. and I.A. Koretskaya (1984). A New Species of Seal from the Sarmatian Deposit of the Crimea. Vestnik Zoologii, 4. Dewaele, L., O. Lambert and S. Louwye (2017). On Prophoca and Leptophoca (Pinnipedia, Phocidae) from the Miocene of the North Atlantic realm: redescription, phylogenetic affinities and paleobiogeographic implications. PeerJ, 5:e3024. Koretsky, I.A. (2003). New finds of Sarmatian seals (Mammalia, Carnivora, Phocinae) from southern Hungary. Advances in Vertebrate Paleontology "Hen to Panta". Koretsky, I.A. (1987). The position of the genus Praepusa in the Phocinae system. Vestnik Zoologii. Koretsky, I.A. and N. Peters (2008). Batavipusa (Carnivora, Phocidae, Phocinae): a new genus from the eastern shore of the North Atlantic Ocean (Miocene Seals of the Netherlands, part II). DEINSEA, 12. Koretsky, I.A., N. Peters and S.J. Rahmat (2015). New Species of Praepusa (Carnivora, Phocidae, Phocinae) from The Netherlands Supports East to West Neogene Dispersal of True Seals. Vestnik zoologii, 49(1). Koretsky, I.A., C.E. Ray and N. Peters (2012). A new species of Leptophoca (Carnivora, Phocidae, Phocinae) from both sides of the North Atlantic Ocean (Miocene seals of the Netherlands, part I). DEINSEA, 15. Ray, C.E. (1976). Phoca wymani and Other Tertiary Seals (Mammalia: Phocidae) Described from the Eastern Seaboard of North America. Smithsonian Contributions to Paleobiology, Number 28. Wyss, A.R. (1988). On "Retrogression" in the Evolution of the Phocinae and Phylogenetic Affinities of the Monk Seals. American Museum Novitates, Number 2924. General Phocidae Diedrich, C. (2011). The world's oldest fossil seal record. Natural Science, Vol.3, Number 11. Koretsky, I.A. and L.G. Barnes (2008). 32. Phocidae. In: Evolution of Tertiary Mammals in North America. Vol.2: Small Mammals, Xenarthrans and Marine Mammals. Janis, C.M., G.F. Gunnell and M.D. Uhen (eds.), Cambridge University Press. Koretsky, I.A., S.J. Rahmat and N. Peters (2014). Rare Late Miocene Seal Taxa (Carnivora, Phocidae) from the North Sea Basin. Vestnik zoologii, 48(5). Tarasenko, K.K., et al. (2015). The First Find of Fossil Seals (Phocidae, Carnivora, Mammalia) in the Maikop Beds of Kalmykia. Doklady Biological Sciences, Vol.465. True, F.W. (1906). Description of a New Genus and Species of Fossil Seal from the Miocene of Maryland. Proceedings of the United States National Museum, Vol.XXX, Number 1475. Walsh, S. and D. Naish (2002). Fossil Seals from Late Neogene Deposits in South America: A New Pinniped (Carnivora, Mammalia) Assemblage from Chile. Palaeontology, Vol.45,Part 4. General Pinnipeds Arnason, U., et al. (2006). Pinniped phylogeny and a new hypothesis for their origin and dispersal. Molecular Phylogenetics and Evolution, 41. Berta, A. and M. Churchill (2012). Pinniped taxonomy: review of currently recognized species and subspecies, and evidence used for their description. Mammal Review, Vol.42, Number 3. Cullen, T.M., et al. (2014). Early Evolution of Sexual Dimorphism and Polygyny in Pinnipedia. Evolution, 68(5). Jones, K.E. and A. Goswami (2009). Quantitative analysis of the influences of phylogeny and ecology on phocid and otariid pinniped (Mammalia; Carnivora) cranial morphology. Journal of Zoology, 280(3). Koretsky, I.A. and L.G. Barnes (2006). Pinniped Evolutionary History and Paleobiogeography. In: Mesozoic and Cenozoic Vertebrates and Paleoenvironments: Tributes to the career of Prof. Dan Grigorescu. Z. Csiki (ed.), Ars Docendi. Koretsky, I.A., L.G. Barnes and S.J. Rahmat (2016). Re-Evaluation of Morphological Characters Questions Current Views of Pinniped Evolution. Vestnik zoologii, 50(4). Mitchell, E.D. (1975). Parallelism and Convergence in the Evolution of Otariidae and Phocidae. P.-v. Reun.Cons.int.Explor.Mer., 169, Section 1: Evolution. Miyazaki, S., et al. (1994). Summary of the fossil record of pinnipeds of Japan, and comparisons with that from the eastern North Pacific. The Island Arc, 3. Pierce, S.E., J.A. Clack and J.R. Hutchinson (2011). Comparative axial morphology in pinnipeds and its correlation with aquatic locomotory behavior. Journal of Anatomy, 219. Repenning, C.A. and R.H. Tedford (1977). Otarioid Seals of the Neogene. U.S. Geological Survey Professional Paper 992. Sanfelice, D. and S.J. Drehmer (2013). Interpretation of anatomical characters in phylogenetic analysis of Pinnipedia, with emphasis on Otariidae (Mammalia, Carnivora). Biotemas, 26(2). Valenzuela-Toro, A.M., et al. (2013). Pinniped Turnover in the South Pacific Ocean: New Evidence from the Plio-Pleistocene of the Atacama Desert, Chile. Journal of Vertebrate Paleontology, 33(1).