Pterodactyloid pterosaur bones from cretaceous deposits of the antarctic peninsula
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Pterodactyloid pterosaur bones from cretaceous deposits of the antarctic peninsula. / Kellner, Alexander Wilhelm Armin; Rodrigues, Taissa; Costa, Fabiana R.; Weinschütz, Luiz C.; Figueiredo, Rodrigo G.; DE SOUZA, Geovane A.; Brum, Arthur S.; Eleutério, Lúcia H.S.; Mueller, Carsten W.; Sayão, Juliana M.
In: Anais da Academia Brasileira de Ciencias, Vol. 91, e20191300, 2019.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Pterodactyloid pterosaur bones from cretaceous deposits of the antarctic peninsula
AU - Kellner, Alexander Wilhelm Armin
AU - Rodrigues, Taissa
AU - Costa, Fabiana R.
AU - Weinschütz, Luiz C.
AU - Figueiredo, Rodrigo G.
AU - DE SOUZA, Geovane A.
AU - Brum, Arthur S.
AU - Eleutério, Lúcia H.S.
AU - Mueller, Carsten W.
AU - Sayão, Juliana M.
PY - 2019
Y1 - 2019
N2 - Fossil vertebrates from Antarctica are considerably rare, hampering our understanding of the evolutionary history of the biota from that continent. For several austral summers, the PALEOANTAR project has been carrying out fieldwork in the Antarctic Peninsula in search for fossils, particularly Cretaceous vertebrates. Among the specimens recovered so far are two bones referable to Pterosauria, more specifically to the Pterodacyloidea, the first volant reptiles from Antarctica to be fully described. MN 7800-V (part and counterpart) was recovered from a moraine at the Abernathy Flats (Santa Marta Formation, Lachman Crags Member, Santonian-Campanian) on James Ross Island. It is interpreted as the distal articulation of a first phalanx of the wing finger, representing an animal with an estimated wingspan between 3 and 4 m. The second specimen (MN 7801-V) comes from Vega Island (Snow Hill Island Formation, Maastrichtian) and is identified as a wing metacarpal IV of an animal with an estimated wingspan from 4 to 5 m. These occurrences show that pterodactyloids inhabited the Antarctic Peninsula at least during the Upper Cretaceous and demonstrate that large pterosaurs were widespread through all parts of the planet during that period.
AB - Fossil vertebrates from Antarctica are considerably rare, hampering our understanding of the evolutionary history of the biota from that continent. For several austral summers, the PALEOANTAR project has been carrying out fieldwork in the Antarctic Peninsula in search for fossils, particularly Cretaceous vertebrates. Among the specimens recovered so far are two bones referable to Pterosauria, more specifically to the Pterodacyloidea, the first volant reptiles from Antarctica to be fully described. MN 7800-V (part and counterpart) was recovered from a moraine at the Abernathy Flats (Santa Marta Formation, Lachman Crags Member, Santonian-Campanian) on James Ross Island. It is interpreted as the distal articulation of a first phalanx of the wing finger, representing an animal with an estimated wingspan between 3 and 4 m. The second specimen (MN 7801-V) comes from Vega Island (Snow Hill Island Formation, Maastrichtian) and is identified as a wing metacarpal IV of an animal with an estimated wingspan from 4 to 5 m. These occurrences show that pterodactyloids inhabited the Antarctic Peninsula at least during the Upper Cretaceous and demonstrate that large pterosaurs were widespread through all parts of the planet during that period.
KW - Antarctic Peninsula
KW - Antarctica
KW - Cretaceous
KW - PALEOANTAR
KW - Pterosauria
U2 - 10.1590/0001-3765201920191300
DO - 10.1590/0001-3765201920191300
M3 - Journal article
C2 - 31800676
AN - SCOPUS:85076113460
VL - 91
JO - Anais da Academia Brasileira de Ciencias.
JF - Anais da Academia Brasileira de Ciencias.
SN - 0001-3765
M1 - e20191300
ER -
ID: 238948480