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Fossils: Glossary

A

ammonites
An extinct shelled creature

B

body fossils
Fossils of bodies of living creatures - includes bones, feathers, skin, fur and teeth

C

cephalopods
Marine animals that include squid, octopus and other boneless animals

D

decaying
rotting

I

invertebrates
Animals without a spine

O

organisms
Living things

P

Paleozoic Era
Between 251 million to 542 million years ago
plant fossils
Fossils of leaves, seeds, bark, etc.
prehistoric
Before anyone was around to write history
preserved
Kept from decaying

S

sedimentary rocks
Rocks formed by layering of material in water
stromatolites
Layered mound fossils - oldest known fossils

T

trace fossils
Footprint fossils - also eggs, leaf impressions, anything that leaves just a trace of evidence
trilobites
Extinct marine animal
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