Río Chico Este (Eocene of Argentina)

Also known as east of Río Chico

Where: Chubut, Argentina (45.1° S, 67.3° W: paleocoordinates 47.6° S, 57.4° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Lutetian (47.8 - 41.3 Ma)

• Vacan SALMA (Cifelli 1985). Middle Eocene (Lutetian, ~45 Ma) according to Woodburne et al. (2014).

Environment/lithology: terrestrial; lithology not reported

Size class: 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 176165: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 30.01.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Notoungulata - Notostylopidae
Notostylops pendens
Notostylops pendens Ameghino 1901 notoungulate
 Notoungulata - Archaeopithecidae
"Acropithecus rigidus" = Archaeopithecus rogeri
"Acropithecus rigidus" = Archaeopithecus rogeri Ameghino 1897 notoungulate
 Notoungulata - Isotemnidae
Isotemnidae indet., Thomashuxleya externa n. sp., Anisotemnus distentus
Isotemnidae indet. Ameghino 1897 notoungulate
Thomashuxleya externa n. sp. Ameghino 1901 notoungulate
MACN 10537, mandible p4-m2
Anisotemnus distentus Ameghino 1901 notoungulate
 Notoungulata - Henricosborniidae
Peripantostylops minutus, Othnielmarshia lacunifera, Henricosbornia ampla, Henricosbornia lophodonta
Peripantostylops minutus Ameghino 1901 notoungulate
Othnielmarshia lacunifera Ameghino 1901 notoungulate
Henricosbornia ampla Ameghino 1904 notoungulate
Henricosbornia lophodonta Ameghino 1901 notoungulate
 Notoungulata - Oldfieldthomasiidae
"Maxschlosseria praeterita" = Maxschlosseria praeterita, "Maxschlosseria minima" = Maxschlosseria praeterita, "Maxschlosseria consumata" = Maxschlosseria praeterita, "Maxschlosseria rusticula" = Maxschlosseria praeterita, Paginula parca
"Maxschlosseria praeterita" = Maxschlosseria praeterita Ameghino 1901 notoungulate
"Maxschlosseria minima" = Maxschlosseria praeterita Ameghino 1901 notoungulate
"Maxschlosseria consumata" = Maxschlosseria praeterita Ameghino 1901 notoungulate
"Maxschlosseria rusticula" = Maxschlosseria praeterita Ameghino 1901 notoungulate
Paginula parca Ameghino 1901 notoungulate