ScienceAugust 16, 2026

archosaurs

AR-kuh-sorz

Definition

A diverse group of reptiles including dinosaurs, birds, crocodiles, and pterosaurs, that evolved during the Triassic period.

Etymology

Derived from the Greek words 'archos' meaning 'ruler' or 'chief' and 'sauros' meaning 'lizard,' reflecting the group's status as the 'ruling reptiles' of their era.

In the news

The article uses the term to describe the shared ancestors of both crocodiles and birds, noting that their common lineage was originally warm-blooded.

Crocodiles can’t fly. Birds can. Scientists have finally figured out why

Read the full article ↗

Telangana Today

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