Dinosaurs A to Z
Hadrosauridae

Coahuilasaurus lipani

"Coahuila lizard"

Generic ornithopod body-plan outline
You 1.8 m (5.9 ft) tall
Coahuilasaurus 9 m (29.5 ft) long
as long as 6 people standing fingertip to fingertip
generic ornithopod body plan, scaled to length — not a silhouette of Coahuilasaurus
Length
9 m (29.5 ft)
Period
Late Cretaceous (72.5 Mya)
Place
Mexico
Food
Herbivore
Clade
Hadrosauridae Dinosauria Ornithischia Cerapoda Ornithopoda Iguanodontia Duck-billed dinosaurs with tooth batteries.
Coahuilasaurus reconstruction by César Díaz Frías
Reconstruction · César Díaz Frías (CC-BY)

Coahuilasaurus (meaning “Coahuila lizard”) is an extinct genus of kritosaurin ornithopod dinosaur from the Late Cretaceous (Campanian) Cerro del Pueblo Formation of Coahuila, Mexico. The genus contains a single species, C. lipani, known from the associated tips of the upper and lower jaw and other fragmentary skull bones. It is a large kritosaurin with an estimated body length of 8 – 9 m and body mass of over 4 MT.

What we know

  • Named by Longrich et al., 2024.
  • Body length estimated at about 9 m.
  • Fossils found in Mexico.

What we guess

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