Punta Casamayor (Eocene of Argentina)

Where: Santa Cruz, Argentina (46.7° S, 67.1° W: paleocoordinates 49.1° S, 57.6° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Barrancan zone, Sarmiento Formation, Bartonian (41.3 - 38.0 Ma)

• Woodburne et al. (2014) consider the Barrancan to be Middle Eocene (late Lutetian–Bartonian) in age.

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Primary reference: B. Vera. 2012. Revisión del género Transpithecus Ameghino, 1901 (Notoungulata, Interatheriidae) del Eoceno medio de Patagonia, Argentina. Ameghiniana 49(1):60-74 [J. Zijlstra/J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 176494: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 14.02.2016, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Astrapotheria - Trigonostylopidae
Trigonostylops wortmani2 Ameghino 1897 placental
CNHM P13323, lower jaw with left c, p1, p3-4, m1, and right p2-m3, from "Casamayor Beds near Punta Casamayor"; MACN Pv 47, partial rostrum
 Notoungulata - Notopithecidae
Antepithecus brachystephanus3 Ameghino 1901 notoungulate
MNHN CAS 120
Notopithecus adapinus2 Ameghino 1897 notoungulate
CNHM P13442, from Casamayor
Transpithecus obtentus Ameghino 1901 notoungulate
FMNH P13439
 Notoungulata - Archaeohyracidae
Eohyrax ? isotemnoides2 Ameghino 1904 notoungulate
MHN Tournouër Coll. No. 31, three upper molars. From "Casamayor".
 Notoungulata - Isotemnidae
Isotemnus primitivus2 Ameghino 1897 notoungulate
AMNH 737535, dentary m2-3, from Punta Casamayor
 Panameriungulata - Didolodontidae
Didolodus multicuspis1 Ameghino 1897 placental
CNHM P13499, m2-3, from Punta Casamayor