New thylacocephalans from the Early Triassic Paris Biota (Bear Lake County, Idaho, USA)

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TitreNew thylacocephalans from the Early Triassic Paris Biota (Bear Lake County, Idaho, USA)
Type de publicationJournal Article
Year of Publication2019
AuteursCharbonnier S, Brayard A, Bylund KG, Escarguel G, Fara E, Goudemand N, Gueriau P, Jenks JF, Krumenacker L.J, Olivier N, Stephen DA, Thomazo C, Thoury M, Vennin E, Team PBiota
JournalGEOBIOS
Volume54
Pagination37-43
Date PublishedJUN
Type of ArticleArticle
ISSN0016-6995
Mots-clésEuarthropoda, New genera, Paris Biota, Spathian, Thylacocephala, Triassic
Résumé

Two new genera and species of thylacocephalans (Arthropoda, Thylacocephala), Parisicaris triassica Charbonnier and Ligulacaris parisiana Charbonnier, are described from the early Spathian Paris Biota. These new occurrences are the first reports of thylacocephalans from Triassic rocks in North America. They considerably enlarge the spatiotemporal distribution of these enigmatic arthropods and highlight their relatively high generic richness during the Early Triassic. It also confirms that the Triassic was the taxonomically richest period for Thylacocephala. (C) 2019 Elsevier Masson SAS. All rights reserved.

DOI10.1016/j.geobios.2019.04.005