As we were not there to count it would be impossible to answer this question.
Massospondylus lived in the very beginning of the Early Jurassic Period. In fact, the fossil beds Massospondylus lived in are used to DEFINE the beginning of the Jurassic!
The Allosaurus lived 150 million years ago. That was during the Jurassic period. The Jurassic period was part of the Mesozoic era.
the brachiosaurus lived in the Jurassic period
It lived in the Jurassic period.
Brontosaurus lived during the Jurassic Period
Lived in the Late Jurassic Period about 150 million years ago
The Jurassic Period followed the Triassic.
An ichtyosaurus is a marine reptile that lived in the Jurassic period.
Dinosaurs.
Crylophosaurus lived in the Jurassic Period.
Allosaurus, Ornitholestes, Dilophosaurus
Diplodocus lived during the Late Jurassic period, around 154-152 million years ago.