Look up · dinosaur 362 of 1,425
beaked plant-eater
Diclonius
Say it like this: “die-KLOH-nee-us”
Diclonius pentagonus
Diclonius ate plants and walked on two or four legs. It lived in the Late Cretaceous. Bones have been found in the United States.
- When
- Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
- Named in
- 1876 · Cope, E. D.
- Hip height
- Not established
- Length
- Not established
- Weight
- Not established
- Found in
- the United States · Judith River
- Food and walking
- Herbivore · Two or four legs
- Kind
- beaked plant-eater · Ornithopod
- Family branch
- Hadrosauridae
The story in short
Diclonius was formally named in 1876 by E. D. Cope. The name means “double sprout.”
Fossils referred to Diclonius date to the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Judith River Formation. It was a herbivore and could move on two or four legs.
The fossils of Diclonius 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 Hadrosauridae, among the ornithopod dinosaurs.
Close relatives
Aquilarhinus
Aquilarhinus palimentus
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Arstanosaurus
Arstanosaurus akkurganensis
Late Cretaceous (Santonian · Campanian) · roughly 85.7 to 72.2 million years ago
Barsboldia
Barsboldia sicinskii
Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago