Locality III, Tapera de López, Riconada de los López (Eocene of Argentina)

Where: Chubut, Argentina (44.4° S, 68.7° W: paleocoordinates 46.8° S, 59.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• Barrancan SALMA - Middle Eocene

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by Scarritt Expedition in 1933; reposited in the AMNH

Primary reference: L. G. Marshall, R. L. Cifelli, R. E. Drake and G. H. Curtis. 1986. Vertebrate paleontology, geology, and geochronology of the Tapera de López and Scarritt Pocket, Chubut Province, Argentina. Journal of Paleontology 60(4):920-951 [D. Croft/D. Croft/D. Croft]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 49900: authorized by Darin Croft, entered by Darin Croft on 01.05.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Sparassodonta - Proborhyaenidae
Arminiheringia sp. Ameghino 1902 metatherian
AMNH 114051
 Theriamorpha - Peradectidae
Caroloameghinia tenuis Ameghino 1901 marsupial
AMNH 28928
 Polydolopimorphia - Polydolopidae
Polydolops thomasi Ameghino 1897 metatherian
AMNH 28920, 28921, 28924-27, 28930, 28931
Amphidolops serrula Ameghino 1902 metatherian
AMNH 28922, 28923, 28929
 Astrapotheria - Trigonostylopidae
Trigonostylops sp. Ameghino 1897 placental
AMNH 28935
Albertogaudrya sp. Ameghino 1901 placental
AMNH 114053
 Notoungulata - Oldfieldthomasiidae
Oldfieldthomasia debilitata Ameghino 1901 notoungulate
AMNH 114050
 Notoungulata - Isotemnidae
Isotemnus primitivus Ameghino 1897 notoungulate
AMNH 28938, 28940, 114052
Pleurostylodon cf. similis Ameghino 1901 notoungulate
AMNH 28929
 Notoungulata -
? Periphragnis sp. Roth 1899 notoungulate
AMNH 28941
 Notoungulata - Notostylopidae
Notostylops sp. Ameghino 1897 notoungulate
AMNH 114047, 114049
Notostylops cf. murinus Ameghino 1897 notoungulate
AMNH 28957, 28958
 Notoungulata - Notopithecidae
Notopithecus sp. Ameghino 1897 notoungulate
AMNH 28937
Notopithecus cf. adapinus Ameghino 1897 notoungulate
AMNH 28936
Antepithecus brachystephanus Ameghino 1901 notoungulate
AMNH 114046