Also known as Carretera Barranca km 153

Where: Sonora, Mexico (28.6° N, 109.7° W: paleocoordinates 3.3° N, 46.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Santa Clara Formation (Barranca Group), Carnian (235.0 - 221.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology:

Size class: macrofossils

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

Primary reference: A. Zambrano Garcia and R. Weber. 1985. Nuevo ensayo de un panorama de la paleoecologia de comunidades de la tafoflora Santa Clara (Triasico Tardio, Sonora). III Congreso Latinoamericano de Paleontologia. Mexico. Simposio sobre Floras del Triasico Tardio, Su Fitogeografia y Paleoecologia. Memoria. 153-163 [A. Rees/D. Sunderlin/D. Sunderlin] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24004: authorized by Allister Rees, entered by Dave Sunderlin on 26.07.2002