Molds and Casts are replacement type fossils. When an organism dies and is
Most of the gastropods found in NJ are internal molds or casts.

Fossils are parts or traces of ancient organisms (e.g., casts, molds,

Positive and Negative, Cast and Mold Fossils Conversion Factors
Eubrontes is the state fossil, and it is the track species that you see in

FOSSIL TYPES - MOLD - CAST
creates a mold and pours metal into it to cast a statue. Amber Fossils

Gravicalymene, which shows both cast and mold fossils.

Replicas of the dinosaur track; mold (left) and cast (right). The mold

Today my time is divided making molds and casts of Ice Age fossils and Civil
Mold and Cast Trilobite Fossil

Fossil from Sydney Mines

Try this experiment to make your own fossil at home or school.

Cast Fossil: Next you can make a cast fossil by filling the hollow area in
These cast and mold fossils are 500 million years old!

Complete this set by making a cast and a mold fossil that will impress your

Shell cast/mold preserved in a very fine uniform dark sand with less than 5%

A cast fossil is a fossil formed in a mold that resembles the shape of the

fossil the third is a mold fossil and the last one is a cast fossil

Mold and cast trilobite fossil in a siltstone concretion.