Middle Devonian Crinoids from the Parnaiba Basin (Pimenteira Formation, Tocantins State, Brazil)

@inproceedings{Scheffler2011MiddleDC,
  title={Middle Devonian Crinoids from the Parnaiba Basin (Pimenteira Formation, Tocantins State, Brazil)},
  author={Sandro Marcelo Scheffler and S{\'e}rgio Dias-da-Silva and Jos{\'e} Mendes Gama J{\'u}nior and V. M. D. Da Fonseca and Antonio Carlos Sequeira Fernandes},
  year={2011}
}
Abstract This contribution presents the first description of crinoids from western margin of Parnaíba Basin. It also presents their first description in the Pimenteira Formation (Devonian of the Parnaíba Basin, state of Tocantins, Brazil). The material is represented by hundreds of columnals, pluricolumnals, as well as isolated calyx plates. Columnal and pluricolumnal morphology allowed the identification of Laudonomphalus aff. L. tuberosus, and Exaesiodiscus dimerocrinosus n. sp. Based upon… CONTINUE READING
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