Huehuecanauhtlus

Say it like this: “UE-UE-CANA-UHh-TLUS”

Huehuecanauhtlus tiquichensis

Huehuecanauhtlus ate plants and walked on two or four legs. It lived in the Late Cretaceous. Bones have been found in Mexico.

Quiz me on Huehuecanauhtlus

When: Late Cretaceous (Santonian) · roughly 85.7 to 83.6 million years ago
Named in: 2012 · Ramírez-Velasco, A. A.; Benammi, M.; Prieto-Márquez, A.; Ortega, J. A.; Hernández-Rivera, R.
Hip height: Not established
Length: 6 m · 20 ft
Weight: 1–1.4 tonnes
Found in: Mexico · Cutzamala
Food and walking: Herbivore · Two or four legs
Kind: beaked plant-eater · Ornithopod
Family branch: Hadrosauromorpha

The story in short

In 2012, A. A. Ramírez-Velasco and colleagues published the name Huehuecanauhtlus. The name honors a person tied to the fossil or its study.

Fossils referred to Huehuecanauhtlus date to the Late Cretaceous (Santonian), roughly 85.7 to 83.6 million years ago. Finds come from Mexico, including the Cutzamala Formation. It was a herbivore and could move on two or four legs.

Published estimates put Huehuecanauhtlus at a length near 6 m and a body mass around 1–1.4 tonnes.

On the family tree it sits in Hadrosauromorpha, among the ornithopod dinosaurs.

Close relatives

Bactrosaurus

Bactrosaurus johnsoni

Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago

Claosaurus

Claosaurus agilis

Late Cretaceous (Coniacian · Santonian) · roughly 89.8 to 83.6 million years ago

Eolambia

Eolambia caroljonesa

Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago