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Pterosaur Wing Phalanx (?) from Kaiparowits Formation of Utah (free pdf)
From: Ben Creisler
A new online open-access paper:
Andrew A. Farke & Chiara A. Wilridge (2013)
A Possible Pterosaur Wing Phalanx from the Kaiparowits Formation (Late
Campanian) of Southern Utah, USA .
PalArch’s Journal of Vertebrate Palaeontology 10(2), 1-6.
ISSN 1567-2158. 6 pages + 1 figure.
An isolated bone from the late Campanian-aged Kaiparowits Formation of
southern Utah is tentatively identified as the terminal wing phalanx
(manual phalanx IV-4) from a pterosaur, representing the first report
of this clade from the formation. The specimen is 60 mm long and
hollow, with thin and delicate walls and expanded ?proximal and
?distal ends. This is consistent with anatomy reported for equivalent
elements in pterodactyloid pterosaurs. Although the specimen cannot be
more precisely identified, it is consistent with occurrences of
pterosaurs in penecontemporaneous terrestrial depositional
environments throughout western North America.