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单词 protoavis
释义

protoavis

[ proh-toh-ey-vis ]
/ ˌproʊ toʊˈeɪ vɪs /

noun

a fossil bird of the genus Protoavis, from the Triassic Period, having a birdlike, partly toothless jaw structure, a tail and hind legs resembling those of the dinosaur, and the hollow bones and keellike breast that are characteristic of modern birds: the oldest known avian type, preceding the archaeopteryx by an estimated 75 million years.

Origin of protoavis

<New Latin (1986), equivalent to Greek proto-proto- + Latin avis bird

Words nearby protoavis

protistology, protium, proto-, protoactinium, Proto-Algonquian, protoavis, protocal, protochordate, protocol, protocols, protocontinent
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020
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更新时间:2024/12/23 9:00:49