Where: Chubut, Argentina (45.7° S, 68.7° W: paleocoordinates 48.1° S, 58.8° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Mustersan mammal zone, Mustersan (48.0 - 42.0 Ma)
• Mustersan SALMA, Late Eocene (Woodburne et al. 2014).
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Collected by Carlos Ameghino in c. 1900
Primary reference: G. G. Simpson. 1948. The beginning of the age of mammals in South America. Part I. Bulletin of the American Museum of Natural History 91:1-232 [D. Croft/D. Croft/R. Butler]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 176287: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 06.02.2016
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Promoeritherium australe n. gen. n. sp.
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Periphragnis sp. Roth 1899 notoungulate Lower jaws: AMNH 29423, AMNH 29404, CNHM P13317, CNHM P13531, CNHM P13300, CNHM P13303
Periphragnis circunflexus Ameghino 1901 notoungulate MACN 10896, right p4-m1, lectotype; MACN 10894, numerous isolated teeth
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Carolodarwinia pyramidentata n. gen. n. sp.
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