Name:
Anteosaurus
(Early lizard).
Phonetic: Ant-ay-oh-sore-us.
Named By: Watson - 1921.
Classification: Chordata, Synapsida,
Therapsida, Dinocephalia, Anteosauroidia, Anteosauridae.
Species: A. magnificus (type).
Type: Carnivore.
Size: Skull 80
centimetres long. Body length estimated about 5 meters long, possibly
larger.
Known locations: South Africa.
Time period: Capitanian of the Permian.
Fossil representation: Lots of skulls and some
partial post cranial remains.
Despite
its massive size and teeth, the overall body of Anteosaurus
was quite
weak, leading to the suggestion that Anteosaurus
was at least semi
aquatic in its hunting like a crocodile. This means that Anteosaurus
was likely an ambush hunter waiting for its prey to come towards it
before attacking with overwhelming strength and ferocity.
Anteosaurus
like other related therapsids had a thickened skull, and this has
been suggested as an adaptation for head butting, or perhaps more
aptly for head pushing. Also like with Moschops,
the overall build
seems to have been for projecting its body weight forwards. Not only
could this have been useful in dominance head pushing contests, but
it may have also been a technique to knock over unsuspecting or
weakened prey.
Anteosaurus
was once known by a large number of species, but the current thinking
on this is that they merely represent different growth stages of the
same type species, A. magnificans.
Further reading
- The Bases of Classification of the Theriodontia: Proceedings of the
Zoological Society of London, 1921, p. 35-98. - D. M. S. Watson - 1921.
- Evolutionary Patterns in the History of Permo-Triassic and Cenozoic
synapsid predators. - Paleontological Society Papers 8: 267–288. -
Blaire van Valkenburgh & Ian Jenkins - 2002.