Wynyardiidae

Wynyardiidaeis an extinct family of possum-like marsupials from the early Miocene of Wynyard in Tasmania, long been considered to display skeletal features that are intermediate between the primitive polyprotodont and the advanced diprotodont marsupials.

Wynyardiidae
Temporal range: Oligocene–Miocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Diprotodontia
Family: †Wynyardiidae
Osgood, 1921[1]
Genera

Wynyardia
Muramura
Namilamadeta

Wynyardia's brain is clearly phalangeroid in external morphology, resembling closely that of the extant phalangerid, Trichosurus vulpecula. This indicates that by 21 million years ago, an unambiguously phalangerid brain had evolved within the Diprotodonta family, indicating that both groups had a common ancestor prior to this date. Research on Wynyardia bassiana 's relationship with fossil phalangerid species of the Miocene is an ongoing process.

Species


Notes
  1. Osgood, W.H.; Herrick, C.J. (1921). "A monographic study of the American marsupial, Caenolestes". Field Museum of Natural History: Zoological Series. Field Museum of Natural History. 14 (1): 138.

References
  • Wildlife of Gondwana, By Patricia Vickers-Rich and Thomas Hewett Rich 1993 ISBN 0-7301-0315-3 Reed.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.