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Suchosaurus, Baryonyx and Martinavis

ERIC BUFFETAUT. 2007. The spinosaurid dinosaur Baryonyx (Saurischia, Theropoda) in the Early Cretaceous of Portugal. Geological Magazine, Published online by Cambridge University Press 11 Sep 2007

Jaw fragments bearing teeth from the Barremian of Boca do Chapim (Lisboa e Setubal Province, Portugal), originally considered as crocodilian and identified as Suchosaurus girardi by Sauvage, are redescribed and referred to the spinosaurid dinosaur Baryonyx, on the basis of comparison with Baryonyx walkeri, from the Barremian of England. This extends the geographical distribution of this unusual theropod genus to Portugal. Baryonyx appears to have been a frequent component of Early Cretaceous dinosaur assemblages in the Iberian region, which may have formed a biogeographical ?stepping-stone? for baryonychine dispersal between Europe and Africa.

Keywords: Cretaceous, Portugal, dinosaurs, Theropoda, biogeography.

C. A. WALKER, E. BUFFETAUT and G. J. DYKE. 2007. Large euenantiornithine birds from the Cretaceous of southern France, North America and Argentina. Geological Magazine, Published online by Cambridge University Press 26 Sep 2007

Abstract ? We review historical approaches to the systematics of Enantiornithes, the dominant birds of the second half of the Mesozoic, and describe the forelimb remains of a new Cretaceous euenantiornithine. This taxon is known on the basis of fossil specimens collected from southern France, Argentina and the United States; such a wide geographical distribution is uncharacteristic for Enantiornithes as most taxa are known from single localities. Fossils from the Massecaps locality close to the village of Cruzy (H´erault, southern France), in combination with elements from New Mexico (USA) and from the Argentine locality of El Brete (Salta Province) testify to the global distribution of large flighted euenantiornithine birds in the Late Cretaceous.We discuss the systematics and taxonomy of additional isolated bones of Enantiornithes that were collected from the Argentine El Brete locality in the 1970s; the presence of these flying birds in Cretaceous rocks on both sides of the equator, in both northern and southern hemispheres, further demonstrates the ubiquity of this avian lineage by the latter stages of the Mesozoic.

Keywords: palaeontology, anatomy, Mesozoic, France, Argentina, New Mexico, flight.
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Includes the new taxa:

Genus Martinavis nov

Martinavis cruzyensis sp. nov. From Late Campanian?early Maastrichtian sediments (Massecaps locality), close to the village of Cruzy, H´erault, southern France

Martinavis vincei sp. nov. From El Brete, Maastrichtian Lecho Formation, Salta Province Argentina