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December 2018
Vol 41-2
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Print ISSN: 0031-0247
Online ISSN: 2274-0333
Frequency: biannual

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A femur of the Late Cretaceous giant bird Gargantuavis from Cruzy (southern France) and its systematic implications
 
Eric Buffetaut and Delphine Angst
Keywords: Aves; femur; France; Gargantuavis; Late Cretaceous

doi: 10.18563/pv.42.1.e3
 
  Abstract


    A large avian femur recently discovered at the Late Cretaceous Montplo-Nord locality at Cruzy (Hérault, southern France) is referred to the giant bird Gargantuavis philoinos. The estimated mass of the bird is 57 kg, within the range of living cassowaries. The specimen provides new evidence about the anatomy of G. philoinos, notably showing that the distal end of the femur was similar to that of modern birds in having a condylus lateralis subdivided into two semicondyles. A new diagnosis of Gargantuavis philoinos is provided and the taxon is placed in a new family of basal ornithurines.
      


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New remains of the giant bird Gargantuavis philoinos from the Late Cretaceous of Provence (south-eastern France)
Eric Buffetaut, Delphine Angst, Patrick Mechin and Annie Mechin-Salessy
Keywords: Aves; Gargantuavis; Late Cretaceous; Pelvis; South-eastern France

doi: 10.18563/pv.39.2.e3
 
  Abstract


    Two incomplete pelves of the giant bird Gargantuavis philoinos are described from Late Cretaceous deposits at Fox-Amphoux (Var, south-eastern France). They consist of synsacra with attached parts of the ilia. One of them has undergone considerable dorsoventral compression, which makes it very similar in appearance to the holotype pelvis of Gargantuavis philoinos from Campagne-sur-Aude (Aude, southern France). The second specimen has suffered some lateral distortion but is uncrushed dorsoventrally. Because of this, its avians characters (including an arched synsacrum and widespread pneumatisation) are especially clear. These new specimens confirm the avian nature of Gargantuavis and reveal new details about its pelvic anatomy, but provide little new evidence about its systematic position within Aves. The geographical distribution and general rarity of Gargantuavis are discussed.
      


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Published in Vol.39-2 (2015)

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