Dinosaur teeth discovered by a now retired quarryman have revealed a community of prehistoric predators that lived around 135 million years ago in an "exciting" discovery. Paleontologists examined ...

In the kits, the trilobite (2), brachiopod (3), dinosaur bone (4), horse tooth (5), petrified wood (6), graptolite (7), fish (8), smooth ... What is left behind is a hole (or cavity) in the exact ...