Metriorhynchus is a genus of marine crocodilians. specifically "thalattosuchians", that lived during the Jurassic Period, 167 to 155 million years ago.
It was seen in the beginning of the first movie, chasing a small amphibian and attempting to eat it, but fails and swims away. The Metriorhynchus depicted heavily resembles a fish; in reality, thalattosuchians resembled crocodiles but with a fish-like tail and fins. It was the first Belly Dragger seen, however, it is the only fully aquatic one.
- Metriorhynchus is one of the few Sharpteeth that Littlefoot and friends have never come face to face with. Other Sharpteeth include Hydrotherosaurus, Dromaeosaurus, Mosasaurus, Postosuchus, Erythrosuchus, Nothosaurus, Kronosaurus, and Acrocanthosaurus (as only Chomper saw this species, not the others).
- Despite being a type of crocodilian, which is known as a Belly Dragger in the Land Before Time franchise, it is unknown if this term would be for Metriorhynchus, as it is not well adapted to land, rather it lived in the sea. If the characters were to ever encounter it, it would probably be categorized as a Swimming Sharptooth.
- The jaws of the Metriorhynchus seen in The Land Before Time are similar to those of Tick Tock Croc from Disney's Peter Pan.
- ↑ Meyer H von 1832. Paleologica zur Geschichte der Erde. Franfurt am Main, 560 pp.