ammonites
Los Rosanos (Jurassic to of Uruguay)

Where: Tacuarembó, Uruguay (31.8° S, 56.1° W: paleocoordinates 29.1° S, 20.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Batoví Member (Tacuarembó Formation), Kimmeridgian to Kimmeridgian (155.7 - 145.5 Ma)

• "base of Batoví member" (Soto and Perea 2010)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; white, yellow sandstone

• "yellowish-white sandstone"

Size class: mesofossils

Primary reference: D. Perea, M. Ubilla, and A. Rojas. 2003. First report of theropods from the Tacuarembó Formation (Late Jurassic–Early Cretaceous), Uruguay. Alcheringa 27:79-83 [M. Carrano/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 83735: authorized by Matt Carrano, entered by Matt Carrano on 28.08.2008, edited by Matthew Oreska