Allosaurus skull with Detached Lower Jaw & Stand Argentinosaurus saber-like upper canine teeth that

saber-like upper canine teeth that fit into a socket in its lower jaw

Volcanic ash fell

never exceeding 6 inches

Although fragmentary fossil remains possibly belonging to Rhamphorhynchus have been found in England

Paleozoic Dig Panel

Allosaurus skull with Detached Lower Jaw & Stand Argentinosaurus saber-like upper canine teeth thatFull skull from the Upper Jurassic Morrison Formation, Cleveland Lloyd Quarry, Utah. Allosaurus (pronounced Al oh SAWR us) Allosaurus, meaning "different lizard," was a huge, meat eating dinosaur from the late Jurassic period, about 154 million to 144 million years ago. It was a theropod that lived in what is now the western United States. It was up to 40 feet long and weighed up to 4. 5 tons. The skull was nearly 3 feet long and filled with dozens of