UPPER CRETACEOUS–PALEOCENE ECHINOIDS FROM NORTHERN PATAGONIA, ARGENTINA

Echinoids are among the most conspicuous and diverse constituents of the Upper Cretaceous and Paleocene marine invertebrate fauna of Argentina. Nine species were collected from localities exposing the Jagüel (Maastrichtian), Roca (Maastrichtian– Danian), Salamanca (Danian), Arroyo Barbudo (Danian),...

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Veröffentlicht in:	Journal of paleontology 2005-11, Vol.79 (6), p.1072-1087
Hauptverfasser:	GRACIELA PARMA, SARA, CASADÍO, SILVIO
Format:	Artikel
Sprache:	eng
Schlagworte:	Argentina Arroyo Barbudo Formation Arroyo Salado Formation biogeography Boules Cenozoic Chubut Argentina Cretaceous Danian age Echinodermata Echinoida Echinoidea Echinozoa El Fuerte Formation Fauna faunal studies Fossils Geological time Geology Hemiaster Invertebrata invertebrate Invertebrates Jaguel Formation Keels La Pampa Argentina Maastrichtian age Marine Marine invertebrates Mass extinctions Mendoza Argentina Mesozoic morphology new taxa Paleocene Paleogene Paleontology Pampas Petals Piedra Pygopistes parrasae Rio Negro Argentina Roca Formation Salamanca Formation South America Taxa taxonomy Tertiary Upper Cretaceous
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