Open AccessPrimer hallazgo de Trigonias (Mollusca: Bivalvia) cretácicas de Costa Rica (Tortugal, Guanacaste): geología, estratigrafía y paleontología
Author(s) -
Teresita Aguilar,
Percy Denyer
Publication year - 2011
Publication title -
revista geológica de américa central
Language(s) - English
Resource type - Journals
eISSN - 2215-261X
pISSN - 0256-7024
DOI - 10.15517/rgac.v0i26.8530
Subject(s) - cretaceous , bivalvia , calcareous , littoral zone , mollusca , mesozoic , geology , paleontology , geography , biology , ecology , structural basin
This is the first report of the bivalve Trigoniidae [Pterotrigonia (Pterotrigonia) sp.], from anUpper Cretaceous locality of Costa Rica. This fossil association was buried in situ with other mollusks:Pholadomya jamaicensis and gastropods. They are included in a calcareous sandstone, deposited in a sublittoral-littoral (10-15 m deep) environment. The presence of this fossils is an evidence of the influence of the Thetyssea in this area during the Mesozoic (Upper Cretaceous).
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