Anteavis

Say it like this: “AN-tee-AY-vis”

Anteavis crurilongus

Anteavis ate meat and walked on two legs. It lived in the Late Triassic. Bones have been found in Argentina.

Quiz me on Anteavis

When: Late Triassic (Carnian) · roughly 237 to 227.3 million years ago
Named in: 2025 · Martínez, R. N.; Colombi, C. E.; Ezcurra, M. D.; Abelín, D. O.; Cerda, I.; Alcober, O. A.
Hip height: Not established
Length: Not established
Weight: Not established
Found in: Argentina · Ischigualasto
Food and walking: Carnivore · Two legs
Kind: sharp-clawed runner · Theropod
Family branch: Theropoda

The story in short

In 2025, R. N. Martínez and colleagues published the name Anteavis. The name means “before birds.”

It lived in the Late Triassic (Carnian), roughly 237 to 227.3 million years ago. Finds come from Argentina, including the Ischigualasto Formation. It was a carnivore and walked on two legs.

The fossils of Anteavis are too incomplete for a responsible length, hip height, or weight, so those fields are left blank on purpose.

On the family tree it sits in Theropoda, among the theropod dinosaurs.

Close relatives

Eodromaeus

Eodromaeus murphi

Late Triassic (Carnian) · roughly 237 to 227.3 million years ago

Erythrovenator

Erythrovenator jacuiensis

Late Triassic (Carnian · Norian) · roughly 237 to 205.7 million years ago

Inosaurus

Inosaurus tedreftensis

Middle Jurassic (Bathonian · Callovian) · roughly 168.2 to 161.5 million years ago