Scientific name Allosaurus fragilis
Home era Late Jurassic
Creature type Theropod Dinosaur
Deaths caused 30+
Appearances The Incredible Threat

Allosaurus is a genus of large theropod dinosaur that lived 155 to 150 million years ago during the late Jurassic period. The name Allosaurus means "different lizard"

In Primeval Adventure Series Older NovelsEdit

In Brazil, an anomaly has opened letting through a pack of hungry Allosaurus. They fly to Brazil to try and stop them but they all kill everyone n the village and one of them drsgs Connor through an anomaly. When they drag Connor through the anomaly, they get scared by a huge Apatosaurus and the Allosaurus run away. Then a Ceratosaurus drags Connor to eat him but he doesn't get killed when the team save him. The Allosaurus pack fight for Connor with a Ceratosaurus pack when the team run away with Connor. The Allosaurus pack wins and chases the team and Connor. Then they stumble towards a Camarasaurus and battle it (The Incredible Threat)


The Allosaurus, meaning "different lizard", was the largest land-living carnivore and the fiercest other than the famous T-rex. It was named different lizard because its vertebrae were different from the other dinosaurs known at the time of its discovery. It had a huge skull that was balanced by its long and heavy tail. It had very large and powerful rear legs and its front arms were short with three fingers and claws. Even though the Allosaurus was huge it actually had a lot in common with birds of today. The claws look very much like an eagle, large mouth more for swallowing than chewing, a wishbone, and a neck with vertebrae that was hollow for air sacs.

With an amazing finding in Utah brought over 40 complete skeletons. If you ever see one in a museum then now you know where it came from. Also in the same land area lots of Stegosaurus, Diplodocus, Camarasaurus, and Apatosaurus species. Utah must have been one hot spot for fossils. The allosaurus also was found in Montana, Wyoming, South Dakota, Colorado, Oklahoma, and new Mexico.