Title of article :
The Batل Formation of Colombia is truly Cretaceous, not Jurassic
Author/Authors :
Serna، نويسنده , , F.Etayo and Solé De Porta، نويسنده , , N and De Porta، نويسنده , , J and Gaona، نويسنده , , T، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
5
From page :
113
To page :
117
Abstract :
The Batá Formation has been a key unit in paleogeographic reconstructions of Colombia since it was first described as a Jurassic unit. However, the paleontologic evidence for this age was not beyond doubt. The trigoniids collected from the upper part of the unit were misidentified and should be referred to the late late Jurassic–early Cretaceous genus Syrotrigonia. On palynomorph evidence, the Interulobites triangularis, Cyclusphaera psilata, Classopolis, and Balmeiopsis limbatus assemblage indicates that the section should be late Valanginian–Hauterivian in age.
Keywords :
Batل formation , Cretلcico temprano , Early Cretaceous , Microfossils , Bivalves , Bivalvos , microfَsiles , Formaciَn Batل
Journal title :
Journal of South American Earth Sciences
Serial Year :
2003
Journal title :
Journal of South American Earth Sciences
Record number :
2239253
Link To Document :
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