protoavis


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Related to protoavis: archeopteryx

protoavis

(ˌprəʊtəʊˈeɪvɪs)
n
(Palaeontology) a bird-like creature from the late Triassic period
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.protoavis - most primitive avian type known; extinct bird of the Triassic having bird-like jaw and hollow limbs and breastbone with dinosaur-like tail and hind limbs
bird - warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
genus Protoavis - extinct primitive birds of the Triassic period; 70 million years before archaeopteryx
References in periodicals archive ?
A well-known paleontologist, he owns finder's rights to the world's only known specimens of Protoavis -- reputed to be the oldest bird ever discovered.
Therein lies the rub, for most other researchers don't see a bird when they look at Protoavis.
In claiming Protoavis as the oldest bird, Chatterjee threatens to dethrone one of the most widely known animals in all of paleontology -- the fossil bird Achaeopteryx.
Lacking such clear evidence, Chatterjee turns to other parts of the Protoavis fossil in making his case that the animal was a flying bird.
The jaw of Protoavis holds another key place in the bird arguments.
If so, then the fossils, to which Chatterjee has given the genus name Protoavis (ancestral bird), add credence to the notion that birds originally arose from dinosaurs.
The wing structures of Protoavis are so well developed, there's no doubt it could fly," he adds.
In Ostrom's view there is not enoughfossil evidence to say that Protoavis was indeed more advanced.
He thinks that Protoavis could fly between trees in the tropical forest it lived in, but not much farther.