Anuário do Instituto de Geociências (Mar 2019)

Taenidium barretti Bradshaw, 1981 in the Malhada Vermelha Formation (Lower Cretaceous), Malhada Vermelha Basin, Ceará, Brazil

  • João Victor Paula Moreira,
  • Francisco Danilo Sales Paula,
  • Maria Somália Sales Viana,
  • Arquimedes Pompeu de Paulo Chaves,
  • Ana Emilia Quezado de Figueiredo

DOI
https://doi.org/10.11137/2018_3_104_112
Journal volume & issue
Vol. 41, no. 3
pp. 104 – 112

Abstract

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The invertebrate trace fossil record in the Malhada Vermelha Basin, although recognized, is quite sparse and poor from the Systematic Ichnology approach. Field researches carried out in this basin found the presence of these structures which are studied and taxonomically identified in the current work. The absence of wall lining and the presence of a meniscate backfill characteristic of Taenidium barretti allowed assigning this ichnospecies to the analyzed samples. These traces are ascribed here as the result of bioturbation activity in moist sediments exposed to subaerial conditions in paleoenvironmental features of a hot climate.

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