PRESENCIA DE RHABDINOPORA (GRAPTOLITHINA) EN LA QUEBRADA DE HUMAHUACA, PROVINCIA DE JUJUY

Authors

  • Guillermo F. Aceñolaza Div. Paleontología de Vertebrados

Abstract

Large specimens of Early Ordovician planktic graptolites assigned to Rhabdinopora flabelliformis flabelliformis (Bulman) and Rhabdinopora flabelliformis socialis (Salter) were found near Hornaditas, Jujuy Province, northwestern Argentina, in gray greenish shales and fine-grained sandstones of the Santa Rosita Formation. This first finding within the middle part of the Cordillera Oriental is irnportant because Rhabdinopora has been regarded as a guide fossil for the Cambrian-Ordovician boundary worldwide.

Published

2014-02-03

How to Cite

Aceñolaza, G. F. (2014). PRESENCIA DE RHABDINOPORA (GRAPTOLITHINA) EN LA QUEBRADA DE HUMAHUACA, PROVINCIA DE JUJUY. Ameghiniana, 33(1), 95-98. Retrieved from https://ameghiniana.org.ar/index.php/ameghiniana/article/view/2311

Issue

Section

Paleontological Notes

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