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Re: Dromaeosaur questions
Perea, D., Ubilla, M. & Rojas, A. (2003): First report of theropods
from the Tacuarembó Formation (late Jurassic-Early Cretaceous), Uruguay.
Alcheringa, 27 (2): 79-83, 3 Abb.; Sydney
A late Jurassic-Early Cretaceous age for the Tacuarembó Formation is, as I
understand, provisional. The Tacuarembó Formation used to be considered
Middle Triassic-Early Jurassic, but was re-dated to a younger age by Perea
et al. (2001) based on the record of _Priohybodus_ from this formation. The
remains (teeth, spine) closely resembles those of the Late Jurassic-Early
Cretaceous hybodont _Priohybodus arambougi_, which is known from north
Africa and the Arabian pensinsula.
Perea, D., Ubilla, M., Rojas, A., and Goso, C.A. (2001). The West Gondwana
occurrence of the hybodontid shark _Priohybodus_, and the Late
Jurassic-Early Cretaceous Age of the Tacuarembo Formation, Uruguay.
Palaeontology 44 (6), 1227-1236.
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