Contribution
Santonian–Campanian (Late Cretaceous) echinoids from Coahuila, Mexico
Schlüter, Nils; Ifrim, Christina
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 298 Heft 1 (2020), p. 103 - 119
80 références bibliographiques
publié: Oct 28, 2020
manuscrit accepté: Aug 19, 2020
manuscrit reçu: Apr 10, 2020
ArtNo. ESP155029801008, Prix: 29.00 €
Abstract
Five species from Santonian to Campanian deposits of Saucedas and Tepeyac, Coahuila, Mexico, are described: “Cidaris” splendens, Phymosoma bybeei, Plesiaster? uddeni, Oolopygus pyriformis, and one hemiasterid left in open nomenclature. These records contribute to the limited knowledge on echinoids from this area, allowing for interpretations regarding the palaeobiogeography of the Santonian/Campanian echinoids of Coahuila. This study also revealed the endemism of some species, which is a pattern also familiar in Late Cretaceous ammonites from this area.
Mots-clefs
Echinoidea • Cretaceous • Cidaroida • Phymosomatoida • Spatangoida • Cassiduloida • palaeobiogeography