Steller's Sea Cow Skull

Steller's Sea Cow Skull . UCB specimen.

* Size: 24 inch (61cm)
* Museum quality replicas are cast in durable polyurethane resins.
* Made in USA

The Steller's Sea Cow (Hydrodamalis gigas) is an extinct herbivorous marine mammal. It was the largest member of the order Sirenia, which includes its closest living relative, the Dugong (Dugong dugon), and the manatees (Trichechus spp.). It reached up to 9 metres in length, making it among the largest mammals other than whales to have existed in the holocene epoch.

The Steller's Sea Cow grew to at least 8 to 9 m (26 to 30 ft) in length as an adult, much larger than the manatee or Dugong. However, concerning their weight, Steller's work contains two contradictory estimates: 4 and 24.3 metric tons.