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Theropod teeth from the basalmost Cretaceous of Anoual (Morocco) and their palaeobiogeographical significance

AutorKnoll, Fabien ; Ruiz-Omeñaca, José Ignacio
Palabras claveDinosaur
Fecha de publicación16-feb-2009
EditorCambridge University Press
CitaciónGeological Magazine (2009), doi: 10.1017/S0016756809005950 (in press)
ResumenThe theropod teeth from the Berriasian (Early Cretaceous) site of Anoual (N Morocco) are described. The assemblage is important in that it comes from one of the very few dinosaur sites of this age globally and the only one for the whole of Gondwana. The theropod teeth from Anoual are morphologically diverse. Most of the material possibly belongs to the clade Dromaeosauridae, which would be an early occurrence for this taxon. The palaeogeographic position of Anoual enables it to provide data on the dispersal events that affected terrestrial faunas during Mesozoic times. A Laurasian influence is evidenced by the presence of Velociraptorinae and, on the whole, the theropod fauna from Anoual provides support for the existence of a trans-Tethyan passage allowing terrestrial faunal interchanges during Late Jurassic and/or earliest Cretaceous times. Additionally, Anoual records the existence of diminutive theropods. However, it cannot yet be determined whether the small size of the specimens is genetic or ontogenetic.
DescripciónArticle in press.
Versión del editorhttp://dx.doi.org/10.1017/S0016756809005950
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