Eocaiman cavernensis holotype locality (Notostylops Beds) (Eocene of Argentina)

Also known as South of Lake Colhué Huapí; Gran Barranca

Where: Chubut, Argentina (45.5° S, 68.8° W: paleocoordinates 47.9° S, 59.4° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• Notostylops Beds or Simpson’s Y Tuff, belonging to the Gran Barrancan Member, Sarmiento Formation (Raigemborn et al. 2010), and dated to the Barrancan SALMA: a Bartonian age was specifically obtained for the Simpson’s Y Tuff (= Notostylops Beds), with a mean age of 39.85 Ma estimated (Re et al. 2010)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by G. G. Simpson and J. Hernandez (1st Scarritt Patagonian Expedition) in 1930; reposited in the AMNH

Primary reference: G. G. Simpson. 1933. A new crocodilian from the Notostylops beds of Patagonia. American Museum Novitates 623:1-9 [J. Alroy/R. Whatley/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38172: authorized by John Alroy, entered by Robin Whatley on 17.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Crocodylia -
Eocaiman cavernensis n. gen. n. sp.
Eocaiman cavernensis n. gen. n. sp. Simpson 1933 crocodilian
AMNH FARB 3158 - holotype (partial skull)