Asilisaurus ɑː-siːliː-SORRUHS

Generic small ornithischian body-plan outline
You 1.8 m (5.9 ft) tall
Asilisaurus 3 m (9.8 ft) long
as long as 2 people standing fingertip to fingertip
generic small ornithischian body plan, scaled to length — not a silhouette of Asilisaurus
Length
3 m (9.8 ft)
Period
Middle Triassic (247–242 Mya)
Place
South America · Africa · Tanzania
Food
Herbivore
Clade
Silesauridae

Asilisaurus ( ); from Swahili, asili (“ancestor” or “foundation”), and Greek, σαυρος (sauros, “lizard”) is an extinct genus of silesaurid archosaur. The type species is Asilisaurus kongwe. Asilisaurus fossils were uncovered in the Manda Beds of Tanzania, a formation typically dated to the Anisian stage of the Middle Triassic; however, some authors assert that the formation may be Ladinian or early Carnian instead. If it truly is Anisian, Asilisaurus would be one of the oldest known members of the Avemetatarsalia (animals on the dinosaur/pterosaur side of the archosaurian family tree). Asilisaurus was the first (ostensibly) non-dinosaur dinosauromorph recovered from Africa. Its discovery provides evidence for a rapid diversification of avemetatarsalians during the Middle Triassic, simultaneous with the diversification of pseudosuchians (crocodylian-line archosaurs).

What we know

  • Named by Nesbitt et al., 2010.
  • Body length estimated at about 3 m.
  • Fossils found in South America and Africa.

What we guess

The reconstruction notes for Asilisaurus — soft tissue, color, behavior — haven't been written up yet. Only the recorded basics above are filled in so far.