Dinosaurs A to Z
Coelophysidae

Rioarribasaurus rioa-RRI-ba-SOR-us

Generic theropod body-plan outline
You 1.8 m (5.9 ft) tall
Rioarribasaurus 3 m (9.8 ft) long
as long as 2 people standing fingertip to fingertip
generic theropod body plan, scaled to length — not a silhouette of Rioarribasaurus
Length
3 m (9.8 ft)
Period
Late Triassic (227.3–192.9 Mya)
Food
Carnivore
Clade
Coelophysidae

Rioarribasaurus is a coelophysidae known from the Triassic period, of uncertain origin. Most of what’s published comes from a small number of specimens, and the fuller picture of how it lived is still being worked out.

What we know

  • Originally named by Hunt and Lucas 1991.