Revision of Piceoerpeton Meszoely (Caudata: Scapherpetontidae) and description of a new species from the late Maastrichtian and ?early Paleocene of western North America

Bulletin - Societie Geologique de France - Tập 183 Số 6 - Trang 611-620 - 2012
James D. Gardner1
1Royal Tyrrell Museum of Palaeontology, Box 7500, Drumheller, Alberta, Canada, T0J 0Y0. E-mail: [email protected]

Tóm tắt

AbstractThe scapherpetontid salamander Piceoerpeton is known from the latest Cretaceous to middle Paleogene of North America and was the last surviving member of that paedomorphic family. A suite of vertebral features differentiates Piceoerpeton from other scapherpetontids, including three atlantal features that are autapomorphic within the family: odontoid process reduced to an anteriorly short, nipple-like structure; ventral surface of odontoid process lacks an articular surface for contact with skull; and articular surfaces of anterior cotyles are deeply concave. Differences in inferred body size and vertebral structure permit the recognition of two congeners: P. willwoodense, a large-bodied species (estimated snout-vent length = 100 cm) from the late Paleocene of the Western Interior and early Eocene of the Canadian Arctic and the much smaller P. naylori new species from the late Maastrichtian and ?early Paleocene of Wyoming and Montana, USA. In terms of its older age, smaller size, and less derived vertebral features, P. naylori is potentially ancestral to P. willwoodense.

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Tài liệu tham khảo

Auffenberg, 1959, The status of the salamander genera Scapherpeton and Hemitrypus of Cope, Amer. Mus. Novitates, 1979, 1

Belt, 1997, A pre-Lancian regional unconformity and its relationship to Hell Creek paleogeography in southeastern Montana, Univ. Wyoming Contrib. Geol., 31, 1

Bryant, 1989, Non-dinosaurian lower vertebrates across the Cretaceous-Tertiary boundary in northeastern Montana, Univ. California Publ. Geol. Sci., 134, 1

Cifelli, 1999, Medial Cretaceous vertebrates from the Cedar Mountain Formation, Emery County, Utah: the Mussentuchit local fauna, Utah Geol. Surv. Misc. Publ., 219

Cifelli, 2004, Mammalian biochronology of the latest Cretaceous, Late Cretaceous and Cenozoic mammals of North America: Biostratigraphy and geochronology, 21, 10.7312/wood13040-004

Clemens, 1963, Fossil mammals of the type Lance Formation, Wyoming. Part I. Introduction and Multituberculata, Univ. California Publ. Geol. Sci., 48, 1

Clemens, 1979, Where, when, and what – a survey of known Mesozoic mammal distribution, Mesozoic mammals: The first two-thirds of mammalian history, 7

Cope, 1876, On some extinct reptiles and Batrachia from the Judith River and Fox Hills beds of Montana, Proc. Acad. Nat. Sci. Philadelphia, 28, 340

Duellman, 1986, Biology of amphibians, 670

Duméril, 1806, Zoologie analytique ou methode naturelle de classification des animaux, 344

Eberle, 2002, Early Eocene Leptictida, Pantolesta, Creodonta, Carnivora, and Mesonychidae (Mammalia) from the Eureka Sound Group, Ellesmere Island, Nunavut, Can. J. Earth Sci., 39, 899, 10.1139/e02-001

Erickson, 1991, Flora and fauna of the Wannagan Creek Quarry: late Paleocene of North America, Sci. Publ. Sci. Mus. Minnesota, 7, 1

Estes, 1964, Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming, Univ. California Publ. Geol. Sci., 49, 1

Estes, 1965, A new fossil salamander from Montana and Wyoming, Copeia, 1965, 90, 10.2307/1441245

Estes, 1969, The Batrachosauroididae and Scapherpetontidae, Late Cretaceous and Early Cenozoic salamanders, Copeia, 1969, 225, 10.2307/1442070

Estes, 1975, Lower vertebrates from the Fort Union Formation, late Paleocene, Big Horn basin, Wyoming, Herpetologica, 31, 365

Estes, 1976, Middle Paleocene lower vertebrates from the Tongue River Formation, southeastern Montana, J. Paleontol., 50, 500

Estes, 1981, Gymnophiona, Caudata, Encyclopedia of Paleoherpetology, 1

Estes, 1980, Eocene lower vertebrates from Ellesmere Island, Canadian Arctic Archipelago, Palaeogeog., Palaeoclimatol., Palaeoecol., 30, 325, 10.1016/0031-0182(80)90064-4

Evans, 1996, A metamorphosed salamander from the early Cretaceous of Las Hoyas, Spain, Phil. Trans. Roy. Soc. London B, 351, 627, 10.1098/rstb.1996.0061

Gardner, 2000, Systematics of albanerpetontids and other lissamphibians from the Late Cretaceous of western North America (PhD Dissertation), University of Alberta, Edmonton, 577

Gardner, 2003, Revision of Habrosaurus Gilmore (Caudata; Sirenidae) and relationships among sirenid salamanders, Palaeontology, 46, 1089, 10.1046/j.0031-0239.2003.00335.x

Gardner, 2003, The fossil salamander Proamphiuma cretacea Estes (Caudata; Amphiumidae) and relationships within the Amphiumidae, J. Vert. Paleontol., 23, 769, 10.1671/1828-4

Gardner, 2005, Lissamphibians, Dinosaur Provincial Park: A spectacular ancient ecosystem revealed, 186

Gardner, 2013, Preliminary report on salamanders (Lissamphibia; Caudata) from the Late Cretaceous (late Cenomanian–late Campanian) of southern Utah, U.S.A., The Late Cretaceous of southern Utah: Critical window into end Mesozoic ecosystems

Haeckel, 1866, Generelle Morphologie der Organismen, 2 volumes, 574, 10.1515/9783110848281

Holman, 2006, Fossil salamanders of North America, 232

Kielan-Jaworowska, 2004, Mammals from the age of dinosaurs: Origins, evolution, and structure, 630, 10.7312/kiel11918

Krause, 1980, Early Tertiary amphibians from the Bighorn basin, Wyoming, Univ. Michigan Pap. Paleontol., 69

Kuhn, 1967, Amphibien und Reptilien: Katalog der Subfamilien und höheren Taxa mit Nachweis des ersten Auftretens, 124

Lofgren, 1995, The Bug Creek problem and the Cretaceous-Tertiary transition at McGuire Creek, Montana, Univ. California Publ. Geol. Sci., 140, 1

Lofgren, 2004, Paleocene biochronology: the Puercan through Clarkforkian Land Mammal Ages, Late Cretaceous and Cenozoic mammals of North America: Biostratigraphy and geochronology, 43, 10.7312/wood13040-005

Meszoely, 1967, A new cryptobranchid salamander from the Early Eocene of Wyoming, Copeia, 1967, 346, 10.2307/1442123

Milner, 2000, Mesozoic and Tertiary Caudata and Albanerpetontidae, Amphibian biology, 1412

Naylor, 1983, New salamander (Amphibia: Caudata) atlantes from the Upper Cretaceous of North America, J. Paleontol., 57, 48

Naylor, 1981, Piceoerpeton, a giant Early Tertiary salamander from western North America, J. Paleontol., 55, 507

Nessov, 1981, Cretaceous salamanders and frogs of Kizylkum Desert, Trudy Zoologicheskogo Instituta, Akademiya Nauk SSSR, 101, 57

Nessov, 1988, Late Mesozoic amphibians and lizards of Soviet Middle Asia, Acta Zool. Cracov., 31, 475

Nessov, 1997, Cretaceous nonmarine vertebrates of northern Eurasia, 218

Nessov, 1996, The skull structure in salamanders of Middle Jurassic of Kyrgyzstan and Cretaceous of Uzbekistan, Vestnik Sankt-Peterburgskogo Universiteta, Seriya 7 (Geologiya, Geografia), Vypusk 1, 7, 3

Robinson, 2004, Wasatchian through Duchesnean biochronology, Late Cretaceous and Cenozoic mammals of North America: Biostratigraphy and geochronology, 106, 10.7312/wood13040-006

Rose, 2006, The beginning of the age of mammals, 428, 10.56021/9780801884726

Scopoli, 1777, Introductio ad historiam naturalem, sistens genera lapidium, planatarum, et animalium: hactenus detecta, caracteribus essentialibus donata, in tribus divisia, subinde ad leges naturae, 506, 10.5962/bhl.title.10827

Shishkin, 2000, Mesozoic amphibians from Mongolia and the Central Asiatic republics, The age of dinosaurs in Russia and Mongolia, 297

Skutschas, 2009, Re-evaluation of Mynbulakia Nesov, 1981 (Lissamphibia: Caudata) and description of a new salamander genus from the Late Cretaceous of Uzbekistan, J. Vert. Paleontol., 29, 659, 10.1671/039.029.0326