Basicranial anatomy of Herpetotherium (Marsupialia, Didelphimorphia) from the Eocene of Wyoming. American Museum novitates ; no. 3235

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dc.contributor.authorGabbert, Sherri L.en_US
dc.date.accessioned2005-10-06T16:54:57Z
dc.date.available2005-10-06T16:54:57Z
dc.date.issued1998en_US
dc.description13 p. : ill. ; 26 cm.en_US
dc.descriptionIncludes bibliographical references (p. 11-13).en_US
dc.description.abstract"Cranial anatomy of early Tertiary Herpetotherium is described, with an emphasis on the auditory region. The preserved anatomy presents a suite of characters indicating a conservative morphological trend in the ear region. The tympanic cavity floor has a large alisphenoid contribution that resembles the condition seen in Caluromys. No other bony structures from the petrosal or surrounding bones contribute to closure of the tympanic floor, and it is not known how much was contributed by the ectotympanic. The exit for mandibular nerve (V3) through a rostral incisure of the piriform fenestra is most similar to the condition observed in Marmosa and Monodelphis. In general, the anatomy of the ear region observed in Herpetotherium resembles that observed in extant didelphids; however, changes in spatial morphology appear to distinguish taxonomic groups"--P. [1].en_US
dc.format.extent2357509 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/3244
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York, NY : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 3235en_US
dc.subject.lccQL1 .A436 no.3235, 1998en_US
dc.subject.lcshHerpetotherium.en_US
dc.subject.lcshSkull.en_US
dc.subject.lcshOpossums, Fossil.en_US
dc.subject.lcshMiddle ear -- Evolution.en_US
dc.subject.lcshMammals, Fossil -- Wyoming.en_US
dc.subject.lcshPaleontology -- Eocene -- Wyoming.en_US
dc.subject.lcshPaleontology -- Wyoming.en_US
dc.titleBasicranial anatomy of Herpetotherium (Marsupialia, Didelphimorphia) from the Eocene of Wyoming. American Museum novitates ; no. 3235en_US
dc.typetexten_US

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