Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, Mexico

Currently, the Onisicdea (terrestrial isopods) is a massive Crustacea suborder of more than 3 700 species, but our knowledge of their paleodiversity is poor. In this paper, we present ten fossils of Crinocheta, the largest clade within the Onisicdea, discovered in Early Miocene (23 Ma) amber of Chi...

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Main Authors: Pierre Broly, María de Lourdes Serrano-Sánchez, Francisco J. Vega
Format: Article
Language:English
Published: Universidad Nacional Autónoma de México 2018-11-01
Series:Revista Mexicana de Ciencias Geológicas
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Online Access:https://rmcg.unam.mx/index.php/rmcg/article/view/639
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author Pierre Broly
María de Lourdes Serrano-Sánchez
Francisco J. Vega
author_facet Pierre Broly
María de Lourdes Serrano-Sánchez
Francisco J. Vega
author_sort Pierre Broly
collection DOAJ
description Currently, the Onisicdea (terrestrial isopods) is a massive Crustacea suborder of more than 3 700 species, but our knowledge of their paleodiversity is poor. In this paper, we present ten fossils of Crinocheta, the largest clade within the Onisicdea, discovered in Early Miocene (23 Ma) amber of Chiapas. We described three new genera and six new species including Palaeolibrinus spinicornis gen. nov. sp. nov., Armadilloniscus miocaenicus sp. nov., Archeostenoniscus robustus gen. nov. sp. nov., Archeostenoniscus mexicanus sp. nov., Palaeospherarmadillo mazanticus gen. nov. sp. nov., and Palaeospherarmadillo rotundus sp. nov. This study represents the first fossil record of the family Detonidae, Olibrinidae, and “Stenoniscidae”. From a paleoenvironmental reconstruction perspective, the oniscidean fauna presented here supports a particularly wet paleoenvironment, under brackish water influence, similar to an estuary.
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spelling doaj-art-9d89244888d449b7a38a8d0b09d911e22025-08-20T03:44:54ZengUniversidad Nacional Autónoma de MéxicoRevista Mexicana de Ciencias Geológicas1026-87742007-29022018-11-0135310.22201/cgeo.20072902e.2018.3.639Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, MexicoPierre Broly0María de Lourdes Serrano-Sánchez1Francisco J. Vega240 rue Pasteur, 59520 Marquette-lez-Lille, France.Posgrado en Ciencias de La Tierra, Instituto de Geología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, 04510, Mexico.Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, Mexico. Currently, the Onisicdea (terrestrial isopods) is a massive Crustacea suborder of more than 3 700 species, but our knowledge of their paleodiversity is poor. In this paper, we present ten fossils of Crinocheta, the largest clade within the Onisicdea, discovered in Early Miocene (23 Ma) amber of Chiapas. We described three new genera and six new species including Palaeolibrinus spinicornis gen. nov. sp. nov., Armadilloniscus miocaenicus sp. nov., Archeostenoniscus robustus gen. nov. sp. nov., Archeostenoniscus mexicanus sp. nov., Palaeospherarmadillo mazanticus gen. nov. sp. nov., and Palaeospherarmadillo rotundus sp. nov. This study represents the first fossil record of the family Detonidae, Olibrinidae, and “Stenoniscidae”. From a paleoenvironmental reconstruction perspective, the oniscidean fauna presented here supports a particularly wet paleoenvironment, under brackish water influence, similar to an estuary. https://rmcg.unam.mx/index.php/rmcg/article/view/639Early Mioceneamberterrestrial isopodsChiapasMexico
spellingShingle Pierre Broly
María de Lourdes Serrano-Sánchez
Francisco J. Vega
Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, Mexico
Revista Mexicana de Ciencias Geológicas
Early Miocene
amber
terrestrial isopods
Chiapas
Mexico
title Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, Mexico
title_full Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, Mexico
title_fullStr Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, Mexico
title_full_unstemmed Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, Mexico
title_short Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, Mexico
title_sort diversity of the crinocheta crustacea isopoda oniscidea from early miocene chiapas amber mexico
topic Early Miocene
amber
terrestrial isopods
Chiapas
Mexico
url https://rmcg.unam.mx/index.php/rmcg/article/view/639
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AT mariadelourdesserranosanchez diversityofthecrinochetacrustaceaisopodaoniscideafromearlymiocenechiapasambermexico
AT franciscojvega diversityofthecrinochetacrustaceaisopodaoniscideafromearlymiocenechiapasambermexico