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A Serravallian (Middle Miocene) shark fauna from Southeastern Spain and its palaeoenvironment significance

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A Serravallian (Middle Miocene) shark fauna from Southeastern Spain and its palaeoenvironment significance

dc.contributor.author	Martínez Pérez, Carlos
dc.contributor.author	Esparza, C.
dc.contributor.author	Carrillo-Briceño, J. D.
dc.contributor.author	Manzanares, E.
dc.contributor.author	Hammann, C.
dc.contributor.author	Ferrón, Humberto G.
dc.contributor.author	Botella Sevilla, Hector
dc.date.accessioned	2023-03-01T16:49:07Z
dc.date.available	2023-03-01T16:49:07Z
dc.date.issued	2018
dc.identifier.citation	MARTÍNEZ-PÉREZ, C. ESPARZA, C. CARRILLO-BRICEÑO, J. D. MANZANARES, E. HAMMANN, C. FERRÓN, H. G. BOTELLA, H. 2018 A Serravallian (Middle Miocene) shark fauna from Southeastern Spain and its palaeoenvironment significance Historical Biology 30 3 422 432
dc.identifier.uri	https://hdl.handle.net/10550/85567
dc.description.abstract	The study of a new Serravallian (Middle Miocene) locality from the Southeastern Spain has yielded a shark assemblage characterized by microremains of at least seven taxa (Deania calcea, ¿Isistius triangulus, ¿Squaliolus cf. S. schaubi, ¿Paraetmopterus sp., Pristiophorus sp., Scyliorhinus sp. and a cf. Squaliformes indet) of three different orders (Squaliformes, Pristiophoriformes and Carcharhiniformes). In addition, associated macroremains have also been found, including teeth of ¿Cosmopolitodus hastalis, Isurus sp., Hemipristis serra, Odontaspis sp., Carcharhinus spp. and ¿Otodus (Megaselachus) megalodon. The assemblage contains taxa with disparate environmental preferences including not only neritic and epipelagic sharks but also an important number of meso and bathypelagic representatives. The migration of deep water taxa to shallower waters through submarine canyons/coastal upwelling is proposed as the most plausible cause for explaining the origin of such assemblage. Interestingly, the composition of the deep-water taxa here reported contrast with the chondrichthyans assemblages from the Pliocene and extant Mediterranean communities. This entails a complex biogeographic history, where the Messinian salinity crisis strongly affected the posterior evolution of the Mediterranean ecosystems but some other factors, such us the existence of anoxic events during the Quaternary, could have also played an important role.
dc.language.iso	eng
dc.relation.ispartof	Historical Biology, 2018, vol. 30, num. 3, p. 422-432
dc.subject	Paleontologia
dc.title	A Serravallian (Middle Miocene) shark fauna from Southeastern Spain and its palaeoenvironment significance
dc.type	journal article	es_ES
dc.date.updated	2023-03-01T16:49:08Z
dc.identifier.doi	10.1080/08912963.2017.1326111
dc.identifier.idgrec	117375
dc.rights.accessRights	open access	es_ES