Digestive and appendicular soft-parts, with behavioural implications, in a large Ordovician trilobite from the Fezouata Lagerstätte, Morocco

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dc.contributor.author Gutiérrez-Marco, Juan Carlos
dc.contributor.author García-Bellido, Diego C.
dc.contributor.author Rábano Gutiérrez del Arroyo, Isabel
dc.contributor.author Sá, Artur A.
dc.date.accessioned 2020-09-21T07:58:27Z
dc.date.available 2020-09-21T07:58:27Z
dc.date.issued 2017-01-10
dc.identifier.citation Scientific Reports, vol.7, 39728 es_ES
dc.identifier.issn 2045-2322
dc.identifier.uri http://hdl.handle.net/20.500.12468/356
dc.description.abstract Trilobites were one of the most successful groups of marine arthropods during the Palaeozoic era, yet their soft-part anatomy is only known from a few exceptionally-preserved specimens found in a handful of localities from the Cambrian to the Devonian. This is because, even if the sclerotized appendages were not destroyed during early taphonomic stages, they are often overprinted by the three-dimensional, mineralised exoskeleton. Inferences about the ventral anatomy and behavioural activities of trilobites can also be derived from the ichnological record, which suggests that most Cruziana and Rusophycus trace fossils were possibly produced by the actions of trilobites. Three specimens of the asaphid trilobite Megistaspis (Ekeraspis) hammondi, have been discovered in the Lower Ordovician Fezouata Konservat-Lagerstätte of southern Morocco, preserving appendages and digestive tract. The digestive structures include a crop with digestive caeca, while the appendages display exopodal setae and slight heteropody (cephalic endopods larger and more spinose than thoracic and pygidial ones). The combination of these digestive structures and the heteropody has never been described together among trilobites, and the latter could assist in the understanding of the production of certain comb-like traces of the Cruziana rugosa group, which are extraordinarily abundant on the shallow marine shelves around Gondwana. es_ES
dc.description.sponsorship Instituto de Geociencias, Consejo Superior de Investigaciones Científicas, España es_ES
dc.description.sponsorship Instituto de Geociencias, Universidad Complutense de Madrid, España es_ES
dc.description.sponsorship Departamento de Paleontología, Universidad Complutense de Madrid, España es_ES
dc.description.sponsorship School of Biological Sciences, University of Adelaide, Australia es_ES
dc.description.sponsorship South Australian Museum, Australia es_ES
dc.description.sponsorship Museo Geominero, Instituto Geológico y Minero de España, España es_ES
dc.description.sponsorship Departamento de Geologia, Universidade de Trás-os-Montes e Alto Douro, Portugal es_ES
dc.description.sponsorship Centro de Geociências, Universidade de Coimbra, Portugal es_ES
dc.language.iso en es_ES
dc.publisher Nature Research es_ES
dc.relation CGL2012- 39471/BTE. D.C.G.-B es_ES
dc.relation IGCP 653 es_ES
dc.relation SIMI 5/6 RALI es_ES
dc.rights Acceso abierto es_ES
dc.subject Trilobita es_ES
dc.subject anatomía es_ES
dc.subject Paleozoico es_ES
dc.subject Marruecos es_ES
dc.subject forma trilobites es_ES
dc.title Digestive and appendicular soft-parts, with behavioural implications, in a large Ordovician trilobite from the Fezouata Lagerstätte, Morocco es_ES
dc.type Postprint es_ES
dc.relation.publisherversion https://www.nature.com/articles/srep39728 es_ES
dc.description.funder Ministerio de Economía y Competitividad, España es_ES
dc.identifier.doi https://doi.org/10.1038/srep39728 es_ES
dc.coverage.spatialStudy Marruecos


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