Period of life:
Stenopterygius is a small 3-metre ichthyosaur which inhabited Europe salt-water basins 183-179 million years ago. The name means "narrow fin". Their diet included fish and mussels.
The Stenopterygius looked similar to sharks and dolphins, had a beaked skull and jaws packed with sharp teeth. Limbs which over time evolved into fins, one caudal and the other dorsal triangle. David Martill in 1987 questioned the existence of a dorsal diving organ.
One of the earliest recovered Stenopterygius fossils had a fin like imprint on its back. Martill assumed the imprint to be simply a torn skin flap. As the reptile had hind limbs, the scientist stated that the dinosaur used hind limbs, instead of a dorsal fin as a rudder.
Being a viviparous reptile, it delivered its offspring into the water and, like cetaceans, a tail came first for spawns did not drown.
Open the doors to the captivating world of animals right now in our exciting app on the App Store!
3D MODEL "SKIN"
3D MODEL "MUSCLES"
3D MODEL "SKELETON"
AR - MODE
HISTORY OF DISCOVERIES