Taxonomic remarks on Brazilian Cretaceous Decapoda from Araripe Basin, Brazil, and ecological inferences
DOI:
https://doi.org/10.4013/5065Abstract
Beurlenia araripensis Martins-Neto and Mezzalira, 1991 (Decapoda: Caridea) and Paleomattea deliciosa Maisey and Carvalho, 1995 (Decapoda: Penaeoidea) are reviser baseated upon new and better preserved samples. The new specimens were found in the Santana Formation, Araripe Basin, Northeast Brazil, respectively in the Crato and Romualdo members. B. araripensis is represented by a well preserved specimen, where is possible to see a cephalothorax with antennal and branchiostegal spines, rostrum with 14 dorsal spines, and telson with posterior spines. This material permits a better characterization of the species’ morphology and its placement in Palaemonidae. The Dendrobranchiata material of P. deliciosa, found in the bituminous shale of Romualdo Member, is for the fi rst time recorded in clusters of fragmentary parts that suggest mass mortality and morphologies that point to a planktonic lifestyle, as occurs with extant forms of sergestids.
Key words: Crustacea, Palaemonidae, Sergestoidea, Lower Cretaceous, Santana Formation, Brazil.Downloads
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