Named By: Auguste Pomel - 1894.
Synonyms: Crocodilus phosphaticus, Dryosaurus phosphaticus.
Classification: Chordata, Reptilia, Crocodylomorpha, Dyrosauridae.
Species: D. phosphaticus (type), D. maghribensis.
Size: Up to 6 meters long.
Known locations: Across North Africa including, Algeria, Egypt, Libya, Morocco, Niger and Tunisia.
Time period: Campanian of the Cretaceous through to the Ypresian of the Eocene. Libyan remains suggest as late as the Priabonian of the Eocene.
Fossil representation: Many individuals.
was a long snouted crocodile
that had jaws filled with numerous, thin
recurved teeth. These kinds of teeth are indicative of a piscivorous
(fish eating) lifestyle. At up to six meters long, Dyrosaurus
were large when compared to modern crocodiles, though positively tiny
when compared to some North African Mesozoic crocodiles like Aegisuchus,
Dyrosaurus however managed to survive the KT
extinction sixty-five million years ago, and the genus continued to
be present in North Africa till the Eocene.
Care should be taken not to confuse Dyrosaurus with the similarly named ornithopod dinosaur Dryosaurus.
- A new dyrosaurid crocodyliform from the Palaeocene of Morocco and a phylogenetic analysis of Dyrosauridae. - Acta Palaeontologica Polonica 50 (3): 581–594. - S. Jouve, M. Iarochène, B. Bouya & M. Amaghzaz - 2005.
- A new description of the skull of Dyrosaurus phosphaticus (Thomas, 1893) (Mesoeucrocodylia: Dyrosauridae) from the Lower Eocene of North Africa. - Stephanie Jouve - 2005.
- A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications. - Zoological Journal of the Linnean Society 148:603-656. - S. Jouve, M. Iarochene, B. Bouya & M. Amaghzaz - 2006.