Stenopterygius

Stenopterygius is an extinct genus of diapsid reptile belonging to the ichthyosaur order of fish-like aquatic reptiles. It was about 2 m (6 ft 8 in) long.Stenopterygius was physically similar to the better known Ichthyosaurus, but had a smaller skull and narrower flippers. Beautifully preserved fossils of Stenopterygius have been found in Germany. One famous fossil is that of a mother and baby that died in childbirth (ichthyosaurs were viviparous). This proved that ichthyosaur infants were born tail-first, just like cetaceans, to prevent them from drowning before fully clearing the birth canal.
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Noun
1. an ichthyosaur of the genus Stenopterygius
(synonym) Stenopterygius quadrisicissus
(hypernym) ichthyosaur
(member-holonym) genus Stenopterygius

STENOPTERYGIUS
Stenopterygius, one of the Ichthyosauruses , was an aquatic reptile that filled the same niche that the dolphins and porpoises exist in today. They were fast swimmers and fed on fish and other sea life. Some typical features of this reptile are long jaws with numerous teeth, eyes set within a ring of bony plate, the reduction of the pelvic girdle components, the associated paddle, and subdivided finger rows. The most astonishing feature of the Ichthyosauruses is that they gave live births. Fossils have been discovered that show a mother that had died while giving birth. The Ichthyosauruses were most prevalent during the Jurassic period.
TIME - Early and Middle Jurassic.
RANGE - Europe (England and Germany), South America.
SIZE - Up to 6ft 6inches long (2m).
DIET - Fish, shellfish and other invertebrates.
see time period