Jiří Meixner
soustava
Založen: 5.2.2007
Příspěvky: 3676
Bydliště: Praha
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 Zaslal: po červenec 26, 2010 8:22 am Předmět: Svrchnokřídový hadrosauroid z Bulharska |
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Godefroit, P., and Motchurova-Dekova, N. 2010. Latest Cretaceous hadrosauroid (Dinosauria: Ornithopoda) remains from Bulgaria. Comptes Rendus Palevol. doi: 10.1016/j.crpv.2010.05.003.
ABSTRACT: Disarticulated dinosaur bones have been discovered in a fossiliferous lens in the Labirinta Cave, southwest of the town of Cherven Bryag, in NW Bulgaria. This cave is formed within marine limestones belonging to the Kajlâka Formation of Latest Cretaceous age. Associated fossils and Sr isotopy suggest that the fossiliferous sediments belong to the uppermost part of the Upper Maastrichtian. The dinosaur bones discovered in this lens include the distal portion of a left femur, a right tibia, the proximal part of a right fibula, a left metatarsal II, the second or third phalanx of a left pedal digit IV, the proximal end of a second metacarpal, and a caudal centrum. All the bones undoubtedly belong to ornithopod dinosaurs and more accurately to representatives of the hadrosauroid clade. All belong to small-sized individuals, although it cannot be assessed whether they belong to juveniles or small-sized adults, pending histological analyses. Hadrosauroid remains have already been discovered in Late Maastrichtian marine sediments from western, central and eastern Europe, reflecting the abundance of these dinosaurs in
correlative continental deposits. Indeed, hadrosauroids were apparently the
dominating herbivorous dinosaurs in Eurasia by Late Maastrichtian time.
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