ammonites
banner
Gateway to the Paleobiology Database
6 km north of Estancia "Ocho Hermanos" (Cretaceous to of Argentina)

Where: Chubut, Argentina (45.3° S, 69.6° W: paleocoordinates 51.9° S, 47.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lower Member (Bajo Barreal Formation), Late/Upper Cenomanian to Late/Upper Cenomanian (99.7 - 89.3 Ma)

• upper portion of the Lower Member

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

Size class: macrofossils

Collected by J. C. Sciutto, J. F. Bonaparte and crew in 1980-1985

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

• site discovered by J. C. Scuitto, then worked successively by MCN (1980) and UNSJB

Primary reference: J. F. Bonaparte. 1984. Jurassic and Cretaceous terrestrial vertebrates of South America. National Geographic Society Research Reports (1975) 16:115-125 [M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38952: authorized by Matt Carrano, entered by Matt Carrano on 17.05.2004, edited by Roger Benson and Jonathan Tennant