Parma, S. G. & Casadío, S. 2005. Upper Cretaceous-Paleocene echinoids from Northern Patagonia, Argentinia. Journal of Paleontology 79, 1072-1087.

176033

10.1666/0022-3360(2005)079[1072:ucefnp]2.0.co;2 [view]

Graciela parma, S.; Casad?o, S.

2005

79(6), 1072-1087

Publication

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 Jaguel (Maastrichtian), Roca (Maastrichtian-Danian), Salamanca (Danian), Arroyo Barbudo (Danian), El Fuerte (Danian), and Arroyo Salado (Danian) Formations in northern Patagonia, Argentina. Only one of these taxa, Paraster joannisboehmi (Oppenheim in Bohm, 1903), has been described previously from Argentina. Four taxa, Gauthieria menuthiae (Lambert and Savin in Lambert and Thiery, 1911), Nucleopygus pullatus (Stoliczka, 1873), Diplodetus nutrix (Lambert in Boule, 1899), and Hemiaster hawkinsi Lambert, 1933, have been described previously from Madagascar. One species, Micropsis desori (Cotteau in Leymerie and Cotteau, 1856), has been described previously from France. One taxon, Pygopistes parrasae is a new species. Argentinian cassiduloids include the only two known Danian species of Nucle

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