RETICULOSID SPONGE FROM THE FLORESTA FORMATION (LOWER ORDOVICIAN), SALTA PROVINCE, NORTHWESTERN ARGENTINA

Authors

  • M. Josefina Aris Consejo de Investigaciones de la Universidad Nacional de Salta (CIUNSa). Avda. Bolivia 5150. CP: 4400. Salta. Instituto para el Estudio de la Biodiversidad de Invertebrados (IEBI-UNSa), Av. Bolivia 5150, 4400, Salta
  • Marcelo G. Carrera Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), CONICET, Facultad Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016GCA, Córdoba http://orcid.org/0000-0003-0013-9195
  • Miguel A. Boso 1 Consejo de Investigaciones de la Universidad Nacional de Salta (CIUNSa). Avda. Bolivia 5150. CP: 4400. Salta.

DOI:

https://doi.org/10.5710/AMGH.17.03.2020.3322

Keywords:

Reticulosid. Sponge. Floresta Formation. Tremadocian. Salta. Argentina

Abstract

A new “reticulosan” sponge was discovered in Floresta Formation (early late Tremadocian), Mojotoro range, Salta, Argentina. The specimen has semi-regular to irregular skeletal structure in a single layer, with stauracts of several sizes and some monaxons. Subparallel strands with rare irregularly distributed and small parietal gaps. The poor preservation, the absence of base and osculum, prevent their inclusion in a particular genus of “reticulosans”. The occurrence of the Argentinean “reticulosan” formrepresents new evidence that some elements of the “reticulosan” sponges from the Cambrian fauna continues into the Lower Ordovician and survived well at different paleo-latitudes and environments.

Author Biography

Miguel A. Boso, 1 Consejo de Investigaciones de la Universidad Nacional de Salta (CIUNSa). Avda. Bolivia 5150. CP: 4400. Salta.

Consejo de Investigaciones de la Universidad Nacional de Salta (CIUNSa). Avda. Bolivia 5150. CP: 4400. Salta; Argentina

Published

2020-06-30

How to Cite

Aris, M. J., Carrera, M. G., & Boso, M. A. (2020). RETICULOSID SPONGE FROM THE FLORESTA FORMATION (LOWER ORDOVICIAN), SALTA PROVINCE, NORTHWESTERN ARGENTINA. Ameghiniana, 57(3), 278-283. https://doi.org/10.5710/AMGH.17.03.2020.3322

Issue

Section

Paleontological Notes

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