First occurrence of Ellisonia, Gondolella and Ubinates (Conodonts) in Itaituba Formation, Pennsylvanian of Amazonas Basin, Brazil

Authors

  • Sara Nascimento
  • Valesca Brasil Lemos
  • Ana Karina Scomazzo
  • Nilo Siguehiko Matsuda
  • Cristiane Pakulski da Silva

DOI:

https://doi.org/10.4013/4694

Abstract

This paper analyzes and describes a fi rst occurrence of the conodonts Ellisonia, Gondolella and Ubinates in Amazonas Basin, North of Brazil. The recovered material comes from two outcrops along the Tapajos River and from a limestone quarry of Itaituba Formation, whose levels are included in the Itaituba Formation, with a Pennsylvanian age. Those conodonts are relevant paleoecological indicators of water depth, salinity and environmental energy and have implications in the Late Carboniferous to Triassic biostratigraphy. The fossil remains represent M and S conodont elements, associated to Pa elements of the Idiognathodus, Idiognathoides, Neognathodus, Adetognathus, Hindeodus and Diplognathodus genus.

Key words: conodonts, Amazonas Basin, Itaituba Formation, Pennsylvanian.

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Published

2021-06-09

Issue

Vol. 6 No. 2 (2010): jul/dec

Section

Artigos

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