NAGIOS: RODERIC FUNCIONANDO

A new selenosteid placoderm from the Late Devonian of the eastern Anti-Atlas (Morocco) with preserved body outline and its ecomorphology

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

A new selenosteid placoderm from the Late Devonian of the eastern Anti-Atlas (Morocco) with preserved body outline and its ecomorphology

dc.contributor.author	Jobbins, M.
dc.contributor.author	Rücklin, M.
dc.contributor.author	Ferrón, Humberto G.
dc.contributor.author	Klug, C.
dc.date.accessioned	2023-03-02T07:37:40Z
dc.date.available	2023-03-02T07:37:40Z
dc.date.issued	2022
dc.identifier.citation	JOBBINS, M. RÜCKLIN, M. FERRÓN, H. G. KLUG, C. 2022 A new selenosteid placoderm from the Late Devonian of the eastern Anti-Atlas (Morocco) with preserved body outline and its ecomorphology Frontiers In Ecology And Evolution 10 1007
dc.identifier.uri	https://hdl.handle.net/10550/85583
dc.description.abstract	Placoderms are an extinct group of early jawed vertebrates that play a key role in understanding the evolution of the gnathostome body plan, including the origin of novelties such as jaws, teeth, and pelvic fins. As placoderms have a poorly ossified axial skeleton, preservation of the mainly cartilaginous axial and fin elements is extremely rare, contrary to the heavily mineralized bones of the skull and thoracic armor. Therefore, the gross anatomy of the animals and body shape is only known from a few taxa, and reconstructions of the swimming function and ecology are speculative. Here, we describe articulated specimens preserving skull roofs, shoulder girdles, most fins, and body outlines of a newly derived arthrodire. Specimens of the selenosteid Amazichthys trinajsticae gen. et sp. nov. display a skull roof with reticular ornamentation and raised sensory lines like Driscollaspis, a median dorsal plate with a unique sharp posterior depression, the pelvic girdle, the proportions and shape of the pectoral, dorsal, and caudal fins as well as a laterally enlarged region resembling the lateral keel of a few modern sharks and bony fishes. Our new phylogenetic analyses support the monophyly of the selenosteid family and place the new genus in a clade with Melanosteus, Enseosteus, Walterosteus, and Draconichthys. The shape of its body and heterocercal caudal fin in combination with the pronounced 'lateral keel' suggest Amazichthys trinajsticae was an active macropelagic swimmer capable of reaching high swimming speeds.
dc.language.iso	eng
dc.relation.ispartof	Frontiers In Ecology And Evolution, 2022, vol. 10, p. 1007
dc.subject	Biologia
dc.subject	Evolució (Biologia)
dc.title	A new selenosteid placoderm from the Late Devonian of the eastern Anti-Atlas (Morocco) with preserved body outline and its ecomorphology
dc.type	journal article	es_ES
dc.date.updated	2023-03-02T07:37:41Z
dc.identifier.doi	10.3389/fevo.2022.969158
dc.identifier.idgrec	156491
dc.rights.accessRights	open access	es_ES