Dinosaur tracks in the computer age
Article Abstract:
Computer graphics have been used to present the results of research into fossil trackways in East Greenland. This approach has made it possible to graft the anatomy of a typical basal theropod foot onto the footfall pattern of living birds, taking into account differences in proportions and kinematics. It has been demonstrated that early Mesozoic theropods walked in a very similar way to, but not exactly like, their living avian descendants. There has been evolution in locomotion and limb function.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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A dromaesaurid dinosaur with a filamentous integument from the Yixian Formation of China
Article Abstract:
Sinornithosaurus millenii, probably the earliest dromaeosaurid discovered so far, was found in Sihetun, western Liaoning, China. Its skull is around 13 cm long, and it has a quite small antorbital fenestra and a large orbit. The shoulder girdle and forelimb are very similar to those of early birds. Its body was apparently covered by a layer of integumentary filaments. This discovery widens the distribution of integumentary filaments among non-avian theropods.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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