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armored dinosaur
Silvisaurus
Say it like this: “SIL-vi-SAWR-us”
Silvisaurus condrayi
Silvisaurus ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in the United States.
- When
- Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
- Named in
- 1960 · Eaton, T. H., Jr.
- Hip height
- 1 m · 3 ft
- Length
- 4 m · 13 ft
- Weight
- 1 tonnes
- Found in
- the United States · Dakota
- Food and walking
- Herbivore · Four legs
- Kind
- armored dinosaur · Ankylosaur
- Family branch
- Nodosauridae
The story in short
In 1960, T. H., Jr. Eaton published the name Silvisaurus. The name means “woodland lizard.”
Fossils referred to Silvisaurus date to the Late Cretaceous (Cenomanian), roughly 100.5 to 93.9 million years ago. Finds come from the United States, including the Dakota Formation. It was a herbivore and walked on four legs.
Published estimates put Silvisaurus at a length near 4 m, hips about 1 m high, and a body mass around 1 tonnes.
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