JP-92354 Sierrita del Cuachalalate, Huetamo area (Cretaceous of Mexico)

Where: Michoacan, Mexico (18.6° N, 100.9° W: paleocoordinates 17.3° N, 56.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Terrero Prieto Member (San Lucas Formation), Early/Lower Aptian (121.4 - 122.5 Ma)

• rudist bed at the base of the biostromal complex (4 medium bedded biostromal structures) in the upper part of the Terrero Prieto Member

• bed-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified bindstone

• rudist biostrome
• rudist boundstone, 60 cm thick

Size class: macrofossils

Collection methods: quarrying,

Primary reference: G. Alencaster and J. Pantoja-Alor. 1995. New Early Aptian Rudists (Bivalvia-Hippuritacea) from the Huetamo area in southwestern Mexico. Revista Mexicana de Ciencias Geologicas 12(2):123-134 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 66801: authorized by Wolfgang Kiessling, entered by Uta Merkel on 17.10.2006, edited by Sarah Kolbe

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Hippuritida - Caprinidae
 Hippuritida - Caprinuloideidae
Amphitriscoelus pluriloculata Alencaster and Pantoja-Alor 1996 rudist
Amphitriscoelus waringi Harris and Hodson 1922 rudist