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European ornithomimosaurs (free pdf)



From: Ben Creisler
bcreisler@gmail.com


A new online paper:


R. Allain, R. Vullo, J. Le loeuff &  J.-F. Tournepiche (2014)
European ornithomimosaurs (Dinosauria, Theropoda): an undetected record.
Geologica Acta 12(2) (advance online publication) June 2014
http://www.geologica-acta.com/pdf/vol1202a05.pdf



Early Cretaceous ornithomimosaurian theropod dinosaurs have been
reported from various localities in Asia, whereas they remain poorly
represented and extremely rare in North America, Africa and Europe. So
far, the only known European ornithomimosaur is Pelecanimimus from the
Barremian of Spain. The recent discovery in southwestern France of a
lignitic bone bed in Angeac, which has yielded several hundred
ornithomimosaur bones, sheds new light on the ornithomimosaurian
fossil record. Based on this new material, we re-evaluate here the
systematic position of various isolated theropod bones from the
Wealden of England, including historical taxa of uncertain affinities.
Based on a unique combination of derived characters, Thecocoelurus and
Valdoraptor are linked to the Angeac taxon but are considered to be
nomina dubia. Valdoraptor from the Valanginian of West Sussex appears
to be the oldest known ornithomimosaur together with the
contemporaneous Nqwebasaurus from South Africa. Ornithomimosaurs were
a common component of the Early Cretaceous European dinosaur fauna.
Their presence in Spain, France and England further strengthens the
palaeobiogeographic affinities of the European fossil biota with that
of Asia during this period.