A tribosphenic mammal for the Mesozoic of Australia

Thomas H. Rich*, Patricia Vickers-Rich, Andrew Constantine, Timothy F. Flannery, Lesley Kool, Nicholas Van Klaveren

*Corresponding author for this work

Research output: Contribution to journalArticle

100 Citations (Scopus)


A small, well-preserved dentary of tribosphenic mammal with the most posterior premolar and all three molars in place has been found in Aptian (Early Cretaceous) rocks of southeastern Australia. In most respects, dental and mandibular anatomy of the specimen is similar to that of primitive placental mammals. With the possible exception of a single tooth reported as Eocene in age, terrestrial placentals are otherwise unknown in Australia until the Pliocene. This possible Australian placental is similar in age to Prokennalestes from the late Aptian/early Albian Khoboor Beds of Mongolia, the oldest currently accepted member of the infraclass Placentalia.

Original languageEnglish
Pages (from-to)1438-1442
Number of pages5
Issue number5342
Publication statusPublished - 21 Nov 1997

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