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armored dinosaur
Tatankacephalus
Tatankacephalus cooneyorum
Tatankacephalus ate plants and walked on four legs. It lived in the Early Cretaceous. Bones have been found in the United States.
- When
- Early Cretaceous (Albian) · roughly 113.2 to 100.5 million years ago
- Named in
- 2009 · Parsons, W. L.; Parsons, K. M.
- Hip height
- 1 m · 3 ft
- Length
- 7 m · 23 ft
- Weight
- 450 kg · 992 lb
- Found in
- the United States · Cloverly
- Food and walking
- Herbivore · Four legs
- Kind
- armored dinosaur · Ankylosaur
- Family branch
- Nodosauridae
The story in short
The genus Tatankacephalus dates to 2009, the year W. L. Parsons and K. M. Parsons described it. The name means “bison head.”
It lived in the Early Cretaceous (Albian), roughly 113.2 to 100.5 million years ago. Finds come from the United States, including the Cloverly Formation. It was a herbivore and walked on four legs.
Published estimates put Tatankacephalus at a length near 7 m, hips about 1 m high, and a body mass around 450 kg.
On the family tree it sits in Nodosauridae, among the armored dinosaurs.
Close relatives
Acantholipan
Acantholipan gonzalezi
Late Cretaceous (Santonian) · roughly 85.7 to 83.6 million years ago
Animantarx
Animantarx ramaljonesi
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
Anoplosaurus
Anoplosaurus curtonotus
Early Cretaceous (Albian) · roughly 113.2 to 100.5 million years ago