Biostratigraphy of new pterosaurs from China

S.-A. Ji, Q. Ji and K. Padian ()
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S.-A. Ji: National Geological Museum of China
Q. Ji: National Geological Museum of China
K. Padian: National Geological Museum of China

Nature, 1999, vol. 398, issue 6728, 573-573

Abstract: Abstract Pterosaurs are represented in China by five genera and some isolated bones ranging in age from the Middle Jurassic to the Late Cretaceous period1,2. Four of these genera belong to the derived monophyletic subgroup Pterodactyloidea; only the Middle Jurassic Angustinaripterus from Dashanpu, Sichuan, is a non-pterodactyloid (traditionally ‘rhamphorhynchoids’, a paraphyletic taxon). Two further pterosaurs1,2 (Fig. 1) from the Chaomidianzi Formation of the Beipiao area, western Liaoning Province, occur in the Liaoning beds, several metres higher than the compsognathid coelurosaur Sinosauropteryx and the basal bird Confuciusornis. Our analysis of these two fossils and other components of the fauna suggest a Late Jurassic biostratigraphic age for the Liaoning beds, which are important in the study of avian origins. Figure 1 The new Liaoning pterosaurs. a, Dendrorhynchoides (“Dendrorhynchus ”) curvidentatus n. g. (Ji & Ji, 1998) (holotype, National Geological Museum of China GMV2128). Scale bar, 20 mm. b, Detail of D. curvidentatus skull. Scale bar, 20 mm. c, Pterodactylus (“Eosipterus ”) yangi Ji & Ji, 1997 (holotype, GMV2117). Scale bar, 50 mm.

Date: 1999
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DOI: 10.1038/19221

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