Of all the minerals in the world, fluorite minerals are some of the most colorful, ranging from the deepest purple and vivid greenness to the softest
The ammonites met with extinction long ago, wandering in ancient oceans from 400 to 66 million years ago. They belonged to the cephalopod family and w
Tyrannosaurus rex teeth were built for power and destruction. Massive incisors were thick, sharp, and slightly curved, a perfect combination for holdi
Elasmosaurus fossils got its name, which means "thin plate lizard," from the special structure of its long neck vertebrae.