This is a natural mould. If water rich in minerals fills this space, crystals can form and create a fossil in the shape of the original bone or shell, known as a cast fossil. Or sediment can fill the ...

The Children's Museum of Indianapolis is celebrating its centennial by displaying a cast of a Tyrannosaurus rex skeleton ...

Romilio spreads silicone on a cast made from one of the rock samples ... when “the most common dinosaur fossils are footprints, by several orders of magnitude,” Romilio said.

A fossil of a partial face from a human ancestor is the oldest in western Europe, archaeologists reported Wednesday. The incomplete skull — a section of the left cheek bone and upper jaw – was ...

The activities are structured as classroom investigations, each with a unique theme that utilizes different fossil and cast material from the kit. What fossils tell us about a prehistoric environment ...