protoavis
protoavis
(ˌprəʊtəʊˈeɪvɪs)| Noun | 1. | 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 |
| 单词 | protoavis | |||
| 释义 | protoavisprotoavis(ˌprəʊtəʊˈeɪvɪs)
ProtoavisProtoavisa controversial fossil from the Triassic, thought by some to be a bird. Its existence some 75 million years before ARCHAEOPTERYX in itself gives cause for some doubt.protoavis
Words related to protoavis
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