Also known as Mount Kenyon; Cumulus Hills
Where: Antarctica (85.1° S, 174.8° W: paleocoordinates 81.8° S, 69.8° E)
• coordinate stated in text
• local area-level geographic resolution
When: Lystrosaurus zone, Fremouw Formation (Beacon Group), Early/Lower Triassic (252.2 - 247.2 Ma)
• "Thrinaxodon Col section in the Cumulus Hills" (Cosgriff et al., 1982);
•According to Collinson et al. (2006, GSA Bull. 118(5/6) fig. 6) Lystrosaurus occurs in three different levels within the Thrinaxodon Col section but no horizon is given for any particular specimen in Cosgriff et al. (1982) or elsewhere.
• member-level stratigraphic resolution
Environment/lithology: fluvial; medium-grained sandstone and gray, green mudstone
Size class: macrofossils
Preservation: mold/impression
Collected by J. W. Kitching in 1969-1970, 1970-1971; reposited in the AMNH
Primary reference: J. W. Cosgriff, W. R. Hammer, and W. J. Ryan. 1982. The Pangaean reptile, Lystrosaurus maccaigi, in the Lower Triassic of Antarctica. Journal of Paleontology 56(2):371-385 [J. Alroy/R. Whatley/R. Whatley]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 27266: authorized by John Alroy, entered by Robin Whatley on 26.11.2002, edited by Torsten Liebrecht, Richard Butler and Chris Sidor
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
Cryobatrachus kitchingi2 Colbert and Cosgriff 1974 tetrapod AMNH 9556, impression of portion of skull roof (paratype)
| |
Reptilia | |
| |
Prolacerta broomi1 Parrington 1935 archosauromorph AMNH 9558, partially preserved skull and postcrania. AMNH 9552, postcranial bones. AMNH 9557, humerus, bone fragments
| |
Osteichthyes | |
Lystrosaurus maccaigi Seeley 1898 dicynodont AMNH 9505; specimen listed as Lystrosaurus sp. in Colbert (1974 p. 5)
| |
| |
Cynodontia indet.4 Owen 1861 cynodont AMNH 9523, 9554; possibly large representatives of the genus Thrinaxodon
Thrinaxodon liorhinus4 Seeley 1894 cynodont AMNH 9500, 9516, 9517, 9524, 9528, 9529, 9534, 9553, 9555, 9563, 9570, 9571
|