Gran Barranca faunule 7 (Eocene of Argentina)

Where: Chubut, Argentina (45.7° S, 68.7° W: paleocoordinates 48.0° S, 59.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• Barrancan SALMA, Middle Eocene (Woodburne et al. 2014).

•Low in Gran Barranca section II of Cifelli (1985), in "impure buff to gry. tuff"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: R. Cifelli. 1985. Biostratigraphy of the Casamayoran, Early Eocene of Patagonia. American Museum Novitates 2820:1-26 [J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 176182: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 30.01.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

 Astrapotheria - Trigonostylopidae
Trigonostylops ? wortmani Ameghino 1897 placental
 Notoungulata - Notostylopidae
Notostylops murinus Ameghino 1897 notoungulate
 Notoungulata - Notopithecidae
Antepithecus brachystephanus Ameghino 1901 notoungulate
Notopithecus adapinus Ameghino 1897 notoungulate
 Notoungulata - Oldfieldthomasiidae
Oldfieldthomasia debilitata Ameghino 1901 notoungulate
 Notoungulata - Archaeohyracidae
Eohyrax isotemnoides Ameghino 1904 notoungulate
 Notoungulata - Isotemnidae
Pleurostylodon modicus Ameghino 1897 notoungulate
 Polydolopimorphia - Polydolopidae
Amphidolops serrula Ameghino 1902 metatherian