Jura crocodile sharp teeth like tyrants

A 7m-long Jurassic Crocodile is the top carnivore in Madagascar with teeth and the ability to stand upright like a tyrant dinosaur.

New research on fossil specimens in Madagascar by paleontologists from Italy and France reveals the early origins and evolution of Notosuchia , the lesser known reptile in Jurassic, according to Phys. org. Scientists published their findings in the journal PeerJ yesterday.

Jura crocodile fossil specimens in Madagascar.(Video: Paolo Magliocco).

The large and deep jaw with large serrated teeth similar to that of tyrant dinosaurs in shape and size shows that animals eat hard tissue like bones and tendons. The full name of this 7m long dinosaur crocodile is Razanandrongobe sakalavae (Razana) , which means "giant reptile ancestor from Sakalava region".

The shape of the Jurassic crocodile restoration.(Photo: Fabio Manucci).

The combination of anatomical features helps the fossil identification team of the extinct Jurassic crocodile group named notosuchia, which is closely related to the baurusuchid and sebecid in South America. They are familiar carnivores that live on the ground, possess deep skulls and healthy limbs that can stand upright, unlike today's crocodiles.

"Like other giant crocodiles of the Cretaceous, Razana can defeat both beastly dinosaurs, head the food chain , " said Cristiano Dal Sasso, a researcher at the Milan Museum of Natural History. know.

Razanandrongobe sakalavae is the most representative and the largest size in the Nishi Cambodian group, showing the earliest increase in body size in the evolutionary history of this group.

Jurassic alligators have large jaws with sharp teeth.(Photo: Fabio Manucci).

"The geographical position of Razana in the period of Madagascar separate from other large land areas is evidence of animal lineage, and shows that Cambodia has its origins in the south of Gondwana" , Simone Maganuco, co-operative fake research, share.

The supercontinent to the south of the globe Gondwana includes most of the rock masses that make up the modern continents of the southern hemisphere, including Antarctica, South America, Africa, Madagascar, India, Arabia Peninsula, Australia - New Guinea and New Zealand. It was formed in the early Jurassic period about 200 million years ago and separated in the late Jurassic 160 million years ago.