Acanthodian fish remains from the Upper Silurian or Lower Devonian of the Amazon Basin, Brazil

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Acanthodian fish remains from the Upper Silurian or Lower Devonian of the Amazon Basin, Brazil

  • Volume / Part: 31 / 3
  • Publication Date: August 1988
  • Page(s): 771 - 777
  • Authored By: Philippe Janvier and Jose Henrique G. Melo

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Acanthodian spines, scales, and tooth whorls are described from the Pitinga Member of the Trombetas Formation (Middle Amazon Basin, northern Brazil). The spines and dermal scutes are of climatiid type, but the associated tooth whorl is more like that of an ischnacanthid. This acanthodian assemblage is quite similar to that from the top of the Catavi Formation of Bolivia, where an association of thelodont scales suggests an Early Devonian age. The new acanthodian remains from Brazil are unlikely to be older than the latest Silurian, thus refuting previous ideas that the richly fossiliferous Pitinga Member was Ordovician in age.

Palaeontology - Volume 31 Part 3 Pages 771-777



Palaeontology - Volume 31 Part 3 Pages 771-777

Citations

JANVIER, P., MELO, J. G. 1988. Acanthodian fish remains from the Upper Silurian or Lower Devonian of the Amazon Basin, Brazil. Palaeontology, 31, 3, 771–777.