Sinosauropteryx was one of the smallest known of all theropods (besides birds), reaching maximum lengths of only 100 centimeters, most of this being the tail. It had other features that distinguished itself from most theropods, such as surprisingly short arms, very large fingers for those arms, and the longest tail relative to body length of any carnivorous dinosaur. All fossils have been found in the now-famous Yixian Formation.
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| - Sinosauropteryx was one of the smallest known of all theropods (besides birds), reaching maximum lengths of only 100 centimeters, most of this being the tail. It had other features that distinguished itself from most theropods, such as surprisingly short arms, very large fingers for those arms, and the longest tail relative to body length of any carnivorous dinosaur. All fossils have been found in the now-famous Yixian Formation.
- Sinosauropteryx (meaning "Chinese lizard-wing") is the first and most primitive genus of dinosaur found with the fossilized impressions of feathers. It lived in China during the Early Cretaceous period and may have been a close relative of Compsognathus. It was the first dinosaur genus discovered in the famous Liaoning Province. The largest known specimens are 1-1.20 meters (3 ft) in length, most of which was taken up by its extremely long tail. The remarkably well-preserved fossils show that Sinosauropteryx was covered with a furry down of very simple feathers - though some contention arose with an alternative interpretation of the filamentous impression as collagen fiber remains. These filaments consisted of a simple two-branched structure, roughly similar to the secondarily primitive fe
- Sinosauropteryx was a small theropod with an unusually long tail and short arms. The longest known specimen reaches up to 1.07 m (3.5 ft) in length, with an estimated weight of 0.55 kg (1.2 lb). It was a close relative of the similar but older genus Compsognathus, both genera belonging to the family Compsognathidae. Only one species of Sinosauropteryx has been named: S. prima, meaning "first" in reference to its status as the first feathered non-avialian dinosaur species discovered. Three specimens have been described. The third specimen previously assigned to this genus represents either a second, as-yet unnamed species or a distinct, related genus.
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| - Sinosauropteryx (meaning "Chinese lizard-wing") is the first and most primitive genus of dinosaur found with the fossilized impressions of feathers. It lived in China during the Early Cretaceous period and may have been a close relative of Compsognathus. It was the first dinosaur genus discovered in the famous Liaoning Province. The largest known specimens are 1-1.20 meters (3 ft) in length, most of which was taken up by its extremely long tail. The remarkably well-preserved fossils show that Sinosauropteryx was covered with a furry down of very simple feathers - though some contention arose with an alternative interpretation of the filamentous impression as collagen fiber remains. These filaments consisted of a simple two-branched structure, roughly similar to the secondarily primitive feathers of the modern kiwi. Three specimens have been assigned to Sinosauropteryx prima: the holotype GMV 2123 (NIGP 127586), NIGP 127587, D 2141. The assignment of a fourth, larger specimen to S. prima was later found to be in error.
- Sinosauropteryx was one of the smallest known of all theropods (besides birds), reaching maximum lengths of only 100 centimeters, most of this being the tail. It had other features that distinguished itself from most theropods, such as surprisingly short arms, very large fingers for those arms, and the longest tail relative to body length of any carnivorous dinosaur. All fossils have been found in the now-famous Yixian Formation.
- Sinosauropteryx was a small theropod with an unusually long tail and short arms. The longest known specimen reaches up to 1.07 m (3.5 ft) in length, with an estimated weight of 0.55 kg (1.2 lb). It was a close relative of the similar but older genus Compsognathus, both genera belonging to the family Compsognathidae. Only one species of Sinosauropteryx has been named: S. prima, meaning "first" in reference to its status as the first feathered non-avialian dinosaur species discovered. Three specimens have been described. The third specimen previously assigned to this genus represents either a second, as-yet unnamed species or a distinct, related genus. Sinosauropteryx lived in what is now northeastern China during the early Cretaceous period. It was among the first dinosaurs discovered from the Yixian Formation in Liaoning Province, and was a member of Jehol Biota. Well-preserved fossils of this species illustrate many aspects of their biology, such as their diet and reproduction.
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