RT Journal Article
T1 Datos preliminares sobre el megabentos de bivalvos del Jurásico Superior - Cretácico basal en el Cañón de San Matías (Zacatecas, México)
T1 Preliminary data about megabenthic bivalves from the Upper Jurassic - lowermost Cretaceous at the Cañón de San Matías (Zacatecas, México)
A1 Mora, A. de la
A1 Olóriz, F.
A1 González Arreola, C.
AB The present contribution shows the first approach to the interpretation of precise stratigraphic horizons containing megabenthic fossil assemblages made of Upper Jurassic - lowermost Cretaceous bivalves in México. This is a preliminary report focused on the careful analysis of taphonomic features in bivalve assemblages based on the taxonomic identification of bed-by-bed sampled specimens. On a total sample of fifty-one bivalve assemblages, we interpreted their usual character of parautochthonous assemblages deposited on shallow fine-grained to middle-outer shelves. In addition, no cases of taphonomic condensation were recognised, but stratigraphic horizons showing mixing ecological levels, usually, revealed biostratinomic reworking of originally tiered bivalve assemblages
PB Sociedad Geológica de España
YR 1999
FD 1999
LK http://hdl.handle.net/10272/10080
UL http://hdl.handle.net/10272/10080
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026