For other Early - Middle Jurassic Diorama pages Early Middle Jurassic home Early Jurassic Jurassic China The prosauropods More Diorama and pages BEFORE DINOSAURS THE DINOSAURS AFTER THE DINOS MESOZOIC SEAS BY COMPANY NEWS RECENT UPDATES DINOSAUR COLLECTOR REFERENCES

The first period of the The Early Jurassic is the Aalenian. The Megalosaurus is not well know but is important as one of the first dinosaurs to be described. It is ironic only one other dinosaur fossil is known from this period.

Callovosaurus (callovian reptile) is known from a leg bone discovered in England. It is the earliest known member of the iguanodont family, members of which walked on their hind legs but descended to all fours when feeding. The small anmial estimated at 11 ft. is known from very limited fossil material.

Callovosaurus from Thunder Beasts series

Originally seen as a precursor of Allosaurus from North america. now it is thought that the spinosaurids of the Late Cretaceous are descended from animals related to Megalosaurus and Eustreptospondylus.

The 1/40 Invicta Megalosaurus from the painted series Custom painted by Fred Hinojosa

The following Bajocian and Bathonian periods are only slightly better known. Cetiosaurus the 50 foot Whale Lizard is one the oldest sauropods known. Cetiosaurus was an early sauropod that was primitive in some respects such as having a
solid backbone instead of the more usual hollow bones. It was the first sauropod genus named.