INVESTIGADORES
CARRASCO Paola Andrea
artículos
Título:
Tremadoc (earliest Ordovician) brachiopods from Purmamarca and the Sierra de Mojotoro, Cordillera Oriental of northwestern Agentina. - GEOBIOS: TERCIO 3 SEGÚN LISTA PALEONTOLOGÍA
Autor/es:
BENEDETTO J. L. & CARRASCO P. A
Revista:
GEOBIOS
Editorial:
Elsevier
Referencias:
Año: 2002 vol. 35 p. 647 - 661
ISSN:
0016-6995
Resumen:
The Late Tremadoc storm-dominated shoreface to inner platform deposits exposed west of the Purmamarca village (Coquena Formation) contain a considerably more diverse brachiopod fauna than previously reported. Coquinite horizons from the lower heterolitic succession have yielded monoespecific associations of Nanorthis purmamarcaensis sp. nov. (formerly assigned to N. christianiae KJERULF), wich is also reported from the Late Tremadoc rocks of the Cerro San Bernardo area. The fine-grained Upper Member of the Coquena Formation contains a more diverse fauna composed by Nanorthis brachymyaria nov. sp., Astraborthis quebradensis nov. sp. and the new plectorthid genus Lipanorthis (type species L. andinus nov. sp.). A different species of Lipanorthis (L. santalaurae nov. sp.) from the Mid Tremadoc Floresta Formation of the Sierra de Mojotoro is also described.
