Articles

 

Boletín de la Sociedad Geológica Mexicana

Volumen 70, núm. 2, 2018, p. 499 ‒ 530

http://dx.doi.org/10.18268/BSGM2018v70n2a12

Cretaceous Roveacrinids from Mexico revisited: Overcoming the taxonomic misidentifications and subsequent biostratigraphic abuse

Bruno Ferré1,*, Bruno Granier2,3,4, Przemysław Gorzelak5, Mariusz A. Salamon6

 

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1 Dame du Lac 213, 3 rue Henri Barbusse, F-76300 Sotteville-lès-Rouen, France.
2 Department of Earth and Planetary Sciences, Faculty of Sciences and Techniques, University of western Brittany, 6 avenue Le Gorgeu, CS 93837, F-29238 Brest, France.
3 Department of Ecology and Evolutionary Biology, The University of Kansas, 1200 Sunnyside Avenue, Lawrence, Kansas 66045, U.S.A.
4 Faculty of Sciences II, Earth and Life Sciences Department, Lebanese University, Fanar–El Matn, P.O. Box 26110217, Lebanon.
5 Institute of Paleobiology, Polish Academy of Sciences, Twarda 51/55, PL-00-818 Warsaw, Poland.
6
Faculty of Earth Sciences, University of Silesia, Będzińska 60, PL-41-200 Sosnowiec, Poland.

 

Abstract

The Mesozoic carbonate deposits of Mexico yield a number of overlooked, ill-known, and even enigmatic microfossils, among which are roveacrinoids (Echinodermata, Crinoidea, Roveacrinida). Most of these pelagic organisms probably came from the central Tethysian seaways, and later on from the early central Atlantic Ocean through the northwestern Tethysian neck, thus reaching the Central American platforms (Comanchean shelf, Central Texas platform, and Coahuila platform) and the Western Interior seaway. The present work intends to enlist as comprehensively as possible the Mexican records of roveacrinid crinoids, to propose a revised interpretation of the sections illustrated (most of them being originally erroneously assigned) and to provide a sound data base for further systematic and biostratigraphic research.

Keywords: Echinodermata, Crinoidea, Roveacrinida, Cretaceous, Microfacies, Mexico.