Types of Fossils

These fossils are distinguishable from other fossils because they were scattered over a large region, very common, and lived during a short span of geologic time

• Mold

• Cast

• Trace

• Index

Tags

NGSS.MS-LS4-1

What type of fossil is pictured?

• Cast

• Mold

• Trace

• Petrified

Which type of fossil is the rarest?

• mineral replacement

• casts

• preserved remains

• molds

A ________ is an impression of an ancient organism's body left in a rock.

• mold

• cast

• trace

• carbon film

Trees and sometimes marine animals are sometimes fossilized this way

• permineralized or petrified

• trace

• carbonized or carbon film

• preserved or original remains

Tags

NGSS.MS-LS4-1

This type of fossil forms when entire organisms or parts of organisms are prevented from decaying by being trapped in rock, ice, tar, or amber.

• trace

• preserved or original remains

• carbonized or carbon film

• index

Tags

NGSS.MS-LS4-1

Preserved remains or traces of living things?

• fossils

• organisms

• extinct

• rocks

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Remains can be preserved by?

• changing over time

• staying the same

• tar, amber, ice

• freezing only

a fossil in which minerals replace all or part of an organism

• carbon film

• mold fossil

• petrified fossil

• cast fossil

a type of fossil this is a solid copy of an organism's shape, formed when minerals seep into a mold

• cast fossil

• mold fossil

• carbon film

• petrified fossil