700 m east of São José (Itaborai Basin) (Eocene of Brazil)

Where: Rio de Janeiro, Brazil (22.1° S, 41.6° W: paleocoordinates 24.8° S, 30.4° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Itaboraian mammal zone, Early/Lower Eocene (55.8 - 48.6 Ma)

Environment/lithology: terrestrial; carbonate

• translation: collected from the margins of holes in the calcium carbonate

Size class: macrofossils

Primary reference: L.I. Price and C. Paula Couto. 1946. Vertebrados fósseis do Eoceno Inferior de Itaborai. Notas Preliminares e Estudios 31:1-3 [J. Alroy/J. Wertheim/J. Wertheim]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38793: authorized by John Alroy, entered by Jill Wertheim on 04.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Some shells were found
Show authors, comments, and common names
unclassified
  -
Strophocheilus sp.
Strophocheilus sp.
Originally published in Maury 1929
Reptilia
 Crocodylia - Crocodylidae
Crocodylidae indet.
Aves
 Rheiformes - Rheidae
Diogenornis fragilis n. gen. n. sp.
Diogenornis fragilis n. gen. n. sp. Alvarenga 1983 rhea
Mammalia
 Notoungulata - Henricosborniidae
Henricosbornia sp.
Henricosbornia sp. Ameghino 1901 notoungulate
 Astrapotheria - Trigonostylopidae
Trigonostylops sp.
Trigonostylops sp. Ameghino 1897 placental