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
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protoavis::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | bird |
Examples of protoavis
protoavis
Experts believe birds evolved from a common ancestral protoavis dinosaur some 225 million years ago during the Mesozoic era.
From the sciencedaily.com
