Cerro del Humo, Casamayoran (Eocene of Argentina)

Also known as Pajarito

Where: Chubut, Argentina (45.8° S, 69.0° W: paleocoordinates 48.3° S, 59.1° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Casamayoran zone, Casamayoran (56.0 - 48.0 Ma)

• "Casamayoran" SALMA (now subdivided into the Vacan and Barrancan SALMAs, both of Middle Eocene age).

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Scarritt Expedition in 1930; reposited in the AMNH

Primary reference: G. G. Simpson. 1967. The Ameghinos' localities for early Cenozoic mammals in Patagonia. Bulletin of the Museum of Comparative Zoology 136:63-76 [J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176166: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 30.01.2016, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

• The type of _Notostylops pigafettai_ was the only specimen found here (Simpson 1948:206-207).
Mammalia
 Notoungulata - Notostylopidae
Notostylops pigafettai n. sp.1 Simpson 1948 notoungulate
AMNH 2878, partial skull
 Notoungulata - Archaeopithecidae
Archaeopithecus rogeri2 Ameghino 1897 notoungulate
MLP 66-V-9-16