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NEW CHORISTODERES (REPTILIA : DIAPSIDA) FROM THE UPPER CRETACEOUS AND PALAEOCENE, ALBERTA AND SASKATCHEWAN, CANADA, AND PHYLOGENETIC RELATIONSHIPS OF CHORISTODERA
TLDR
Well-preserved skulls and mandibles from the Oldman and Horseshoe Canyon formations, Alberta, document a new species of Champsosaurus and clarify the status of previously known species of the genus.
An Early Ostrich Dinosaur and Implications for Ornithomimosaur Phylogeny
TLDR
A new ornithomimosaur from the Yixian Formation of Liaoning Province People's Republic of China is described and this taxon is placed in a phylogenetic analysis of Coelurosauria and shown to be near the base of the ornithological clade.
A Life Table for Psittacosaurus lujiatunensis: Initial Insights Into Ornithischian Dinosaur Population Biology
TLDR
The static life table analysis revealed the same general pattern of survivorship as tyrannosaurs including increased attrition before the attainment of full adult size, suggesting that most nonavian dinosaurs may have had a similar life history strategy.
Plumage Color Patterns of an Extinct Dinosaur
TLDR
This work has reconstructed the appearance of a theropod dinosaur by mapping features of its well-preserved feathers and comparing them with modern samples from birds, and indicates that the body was gray and dark and the face had rufous speckles.
Earliest known crown-group salamanders
TLDR
The discovery of well-preserved Middle Jurassic salamander from China constitutes the earliest known record of crown-group urodeles (living salamanders and their closest relatives) and provides evidence to support the hypothesis that the divergence of the Cryptobranchidae from the Hynobiidae had taken place in Asia before the Middle Jurassic period.
The distribution of integumentary structures in a feathered dinosaur
TLDR
An enigmatic small theropod dinosaur is reported on that is covered with filamentous feather-like structures over its entire body.
Late Jurassic salamanders from northern China
TLDR
The discovery of an extraordinary sample of salamander fossils from the Upper Jurassic of China is reported, providing compelling evidence for an Asian origin of Recent salamanders, as well as for an extensive and early radiation of several major lineages.
A longirostrine tyrannosauroid from the Early Cretaceous of China
The fossil record of tyrannosauroid theropods is marked by a substantial temporal and morphological gap between small-bodied, Barremian taxa, and extremely large-bodied taxa from the latest
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