75-8 La Mina San Martin (Triassic of Mexico)

Where: Sonora, Mexico (28.5° N, 110.2° W: paleocoordinates 3.5° N, 47.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Santa Clara Formation (Barranca Group), Carnian (237.0 - 228.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology:

Size class: macrofossils

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

• Same as Zambrano-Garcia and Weber (1985) 513.

Primary reference: R. Weber, R. Trjo-Cruz, A. Tores-Romo and A. Garcia-Padilla. 1980. Hipotesis de trabajo acerca de la paleoecologia de comunidades de la tafoflora Santa Clara del Triasico Tardio de Sonora. Univ. Nal. Auton. Mexico, Inst. Geologia, Revista 4(2):138-154 [A. Rees/D. Sunderlin/D. Sunderlin]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24073: authorized by Allister Rees, entered by Dave Sunderlin on 29.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Polypodiopsida
 Marattiales - Marattiidae
Asterotheca sp. Presl 1845
 Coniferales - Podocarpaceae
Elatocladus spp. Halle 1913 podocarp
 Bennettitales -
Zamites cf. truncatus Zeiller 1903
? Pterophyllum sp. Brongniart 1828
Cycadopsida
 Cycadales - Cycadaceae
Ctenophyllum braunianum Göppert 1844 cycads
 Cycadales -
Macrotaeniopteris
  -
Macrotaeniopteris sp. Schimper 1869