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Fossils Unit

Terms in this set (17)

climate
a pattern of weather over a long period of time
dinosaur
an extinct organism (animal) with reptile and bird like features
environment
the surroundings and conditions in which an organism (animal or plant) lives
extinct
no longer exists
fossil
the remains or evidence of an ancient organism (plant or animal)
impression fossil
a mark or design made on a surface by pressure of a small organism (plant or animal)
infer
to draw a conclusion from information you have
organism
a living thing (plant or animal)
prehistoric
belonging to a period of time before recorded history
preserved fossil
fossil that forms when an organism is trapped in ice, rock, amber or tar
mineral replacement fossil
a fossil made by the organism's hard parts being dissolved and replaced by minerals
trilobite
an extinct ocean shellfish
tropical
very hot and moist climate
mold fossil
a fossil imprint left in the sediment after the organism has decayed
cast fossil
a fossil formed when sediments or minerals fill a mold; it takes on the same shape as the living thing that shaped the mold
amber
hardened tree sap, typically yellowish in color
trace fossil
A fossil that shows that an organism once lived in the area
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