巴西东北部阿拉里皮盆地新物种小帕特森介虫（甲壳纲：介形亚纲）的描述与个体发育

Description and ontogeny of Pattersoncypris minima sp. nov. (Crustacea: Ostracoda), Araripe Basin, Northeast Brazil.

作者信息

DE Almeida-Lima DÉbora Soares, Piovesan Enelise Katia, SayÃo Juliana Manso, DE Lima Flaviana Jorge

机构信息

Universidade Federal de Pernambuco, Programa de Pós-Graduação em Geociências, Av. da Arquitetura, s/n, 50740-550, Recife, PE, Brazil..

出版信息

Zootaxa. 2020 Sep 9;4851(1):zootaxa.4851.1.8. doi: 10.11646/zootaxa.4851.1.8.

DOI:10.11646/zootaxa.4851.1.8

PMID:33056743

Abstract

Representatives of the Class Ostracoda are widely used as tools in applied paleoecological and biostratigraphical studies in all continents. In the Araripe Basin, located in the northeastern of Brazil, the Romualdo Formation is one of the most studied, not only for the preservation but also for the abundance of its fossils. The ostracod genus Pattersoncypris Bate, 1972 is well-represented in this formation and it is the most abundant, which reinforces the importance of its taxonomic study. In this work, Pattersoncypris minima sp. nov. is described for the Romualdo Formation as a contribution to the knowledge on Brazilian Cretaceous non-marine ostracods. Taphonomic aspects are also presented, considering the complete ontogenetic stages of the material.

摘要

介形纲动物在各大洲的应用古生态学和生物地层学研究中被广泛用作工具。在位于巴西东北部的阿拉里皮盆地，罗穆阿尔多组是研究最多的地层之一，不仅因其化石保存完好，还因其化石丰富。介形虫属帕特森介虫（Pattersoncypris Bate，1972）在该地层中有很好的代表性，且是最丰富的，这凸显了其分类学研究的重要性。在这项工作中，为罗穆阿尔多组描述了新物种小帕特森介虫（Pattersoncypris minima sp. nov.），作为对巴西白垩纪非海相介形虫知识的贡献。还介绍了埋藏学方面的内容，考虑了材料完整的个体发育阶段。