Types of Fossils Review

What type of fossil is an imprint in a rock?

• cast 

• trace 

• mold

• whole/part 

This type of fossil forms when sediments bury an organism and then sediments change into rock; the organism decays leaving a cavity in the shape of the organism.

• mold

• cast

• petrified

• trace

This type of fossil forms when minerals soak into the buried remains, replacing the remains, and changing them into rock.

• mold

• cast

• petrified

• preserved

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS2-3

What type of fossil is pictured? 

• mold

• cast

• trace fossil

• petrified fossil

Tags

NGSS.MS-LS4-1

Fossilized rock in the shape of dinosaur bones are which type of fossil?

• real bone

• mold fossil

• cast fossil

• trace fossil

This type of fossil forms when a mold is filled with sand or mud that hardens into the shape of the organism.

• mold

• cast

• trace

• preserved

Tags

NGSS.MS-LS4-1

Shells and skeletons are typically fossilized in this fashion.

• mold and cast

• trace

• carbonized or carbon film

• permineralized or petrified

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

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

NGSS.MS-LS4-2

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

• trace

• index

• permineralized

• mold and cast

Tags

NGSS.MS-LS4-1

What type of fossil is pictured? 

• cast

• petrified fossil

• preserved remains

• trace fossil