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sharp-clawed runner · Disputed
Sigilmassasaurus
Sigilmassasaurus brevicollis
Sigilmassasaurus ate meat and walked on two legs. It lived in the Late Cretaceous. Bones have been found in Morocco.
- When
- Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
- Named in
- 1996 · Russell, D. A.
- Hip height
- Not established
- Length
- Not established
- Weight
- Not established
- Found in
- Morocco
- Food and walking
- Carnivore · Two legs
- Kind
- sharp-clawed runner · Theropod
- Family branch
- Spinosaurinae
The story in short
In 1996, D. A. Russell published the name Sigilmassasaurus. The name means “sigilmassa lizard.”
Fossils referred to Sigilmassasaurus date to the Late Cretaceous (Cenomanian), roughly 100.5 to 93.9 million years ago. Finds come from Morocco. It was a carnivore and walked on two legs.
The fossils of Sigilmassasaurus 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 Spinosaurinae, among the theropod dinosaurs.
Close relatives
Ichthyovenator
Ichthyovenator laosensis
Early Cretaceous (Aptian) · roughly 121.4 to 113.2 million years ago
Irritator
Irritator challengeri
Early Cretaceous (Aptian · Albian) · roughly 121.4 to 100.5 million years ago
Oxalaia
Oxalaia quilombensis
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago