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dc.contributor.authorÁlvaro-Blasco, José Javieres_ES
dc.contributor.authorEsteve, Jorgees_ES
dc.contributor.authorGracia, F.es_ES
dc.contributor.authorZamora, Samueles_ES
dc.identifier.citation60th Annual Meeting of the Palaeontological Association (2016)es_ES
dc.descriptionTrabajo presentado en el 60th Annual Meeting of the Palaeontological Association, celebrado en Lyon (Francia), del 14 al 17 de diciembre de 2016es_ES
dc.description.abstractA new fossil assemblage of Cambrian Epoch 2 (early Cambrian) redlichiid trilobites has been found in the Huérmeda Formation of the Iberian Chains, northeast Spain. This assemblage is dominated by complete specimens characterised by macropleura-bearing thoraxes close to the genera Onaraspis Öpik, 1968 and Myopsolenites Geyer and Landing, 2004, the former reported from Australia and the latter from the Mediterranean and Polish margins of Gondwana. Despite their cephalic similarities, these taxa display highly diversified thoraxes and shield-like pygidia. Although the number of segments in the trunk and the proportions allocated to the thorax and pygidium varied with ontogeny, several Iberian genera and species can be taxonomically differentiated based on trunk features. Cambrian diversification not only featured evolutionary ‘experiments’ with the constructional framework for the trilobite cephalon, but also for the trilobite trunk. The Cambrian diversification in the development of the trunk represents a wakeup call for taxonomic analyses exclusively based on disarticulated cranidia, and highly controlled by taphonomic biases.es_ES
dc.titleOne head with two bodies the Onaraspis-Myopsolenites trilobite conundrumes_ES
dc.typecomunicación de congresoes_ES
dc.description.peerreviewedPeer reviewedes_ES
oprm.item.hasRevisionno ko 0 false*
Appears in Collections:(IGEO) Comunicaciones congresos
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