A re-examination of the enigmatic Russian tetrapod <i>Phreatophasma aenigmaticum</i> and its evolutionary implications

<i>Phreatophasma aenigmaticum</i> is a mysterious tetrapod from the earliest middle Permian of Russia, represented by a single femur. At various times since its original description it has been considered a therapsid synapsid, a pelycosaurian-grade synapsid from the family Caseidae, and...

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Bibliographic Details
Main Authors: N. Brocklehurst, J. Fröbisch
Format: Article
Language:English
Published: Copernicus Publications 2017-02-01
Series:Fossil Record
Online Access:http://www.foss-rec.net/20/87/2017/fr-20-87-2017.pdf