Taxonomic revision of the Lysorophia, Permo-Carboniferous lepospondyl amphibians. Bulletin of the AMNH ; no. 209

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dc.contributor.authorWellstead, Carl F.en_US
dc.date.accessioned2005-11-22T22:54:00Z
dc.date.available2005-11-22T22:54:00Z
dc.date.issued1991en_US
dc.description90 p. : ill., map ; 26 cm.en_US
dc.descriptionIncludes bibliographical references (p. 81-90)en_US
dc.description.abstract"The Lysorophia is an order of small, but extremely elongate and tiny-limbed aquatic lepospondyl amphibians known from the Middle Pennsylvanian through the Lower Permian periods, primarily in North America. The order comprises one family, Cocytinidae, with three recognized species: Brachydectes newberryi (= Cocytinus gyrinoides), B. elongatus (= Lysorophus tricarinatus, partim), and Pleuroptyx clavatus. Other named species are considered Lysorophia, incertae sedis. Members of the Lysorophia are distinguished by their fenestrate skulls, anteriorly sloping suspensoria, short mandibles (each bearing a lateral mandibular fenestra), and extensive, well-ossified hyobranchial skeletons. Presacral vertebrae are holospondylous and number between 69 (B. newberryi) and 97 (B. Elongatus). Neural arch halves are sutured at their midlines and to their centra. While closely similar to one another, lysorophoid species are highly derived relative to other Paleozoic amphibians. They are most closely related to microsaurs, judged principally through the morphology of the craniovertebral articulation"--P. 3.en_US
dc.format.extent18736859 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/904
dc.languageengen_US
dc.language.isoen_US
dc.publisher[New York] : American Museum of Natural Historyen_US
dc.relation.ispartofseriesBulletin of the American Museum of Natural History ; no. 209en_US
dc.subject.lccQH1 .A4 no.209, 1991en_US
dc.subject.lcshLysorophia.en_US
dc.subject.lcshAmphibians, Fossil -- United States.en_US
dc.subject.lcshAmphibians, Fossil -- Great Britain.en_US
dc.subject.lcshPaleontology -- Permian -- United States.en_US
dc.subject.lcshPaleontology -- Carboniferous -- United States.en_US
dc.subject.lcshPaleontology -- Carboniferous -- Great Britain.en_US
dc.subject.lcshPaleontology -- United States.en_US
dc.subject.lcshPaleontology -- Great Britain.en_US
dc.titleTaxonomic revision of the Lysorophia, Permo-Carboniferous lepospondyl amphibians. Bulletin of the AMNH ; no. 209en_US
dc.typetexten_US

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Bulletin of the American Museum of Natural History