Fossil Notes - Leon County Schools

Fossil Notes
Using your book, record how each fossil type forms.
Types of Fossils
1. Cast2. Mold-
3. Trace4. Original Remains-
5. Trails and Burrows6. Carbon Film-
Put the following events in the correct sequence by
numbering them:
_____Sediment surrounding shell becomes rock
_____Holes in the rock let water and air reach the seashell and dissolve it, leaving
behind a hollow place in the rock (mold)
_____Other sediments fill the hollow place and harden into rock (cast)
_____Someone finds the fossil of a seashell buried in sediment and rock
______A seashell falls into the mud
______Seashell gets buried in sediment
Match the terms to their descriptions
fossil from a species that existed on Earth for a
short period of time
3 lobed organism that lived in Earth's oceans for
more than 200 million years
remains imprint, or trace of a once-living
Index Fossil
the division of Earth's history
cavity left in rock by a decayed organism
Geologic Time Scale
produced when a cavity is filled in with solid
Label the following statements as Fossil (F) or Not a Fossil (NF),
If it is a fossil, list the type.
_____insect in amber from a pine tree
_____rocklike parts of a species of fish that lived a short time in parts of the world
_____dinosaur tracks in rocks
_____bird tracks in the snow
_____shell-shaped mineral found in rock cavity
_____oil formed from sea animals of long ago
_____arrowhead made thousands of years ago
_____sandstone with ripples marks from water
_____thin layer of carbon from the remains of a plant that lived thousands of years ago
_____thin cavity in a rock showing where a shell has decayed
_____flesh, fur and bones of a wooly mammoth preserved in frozen ground
_____dinosaur leg bone containing quartz instead of calcium
_____living pine tree more than 4000 years old
_____burrows of worms that lived millions of years ago
1) What is a fossil record, and what does it show?
2) How do fossils give evidence of biological evolution?
1. the impression of an organism in a
A. cast
B. fossil record
2. the fossil copy of an organism in a
C. original-material fossil
3. the preserved evidence of the activity
D. biological evolution
of an organism______
4. the preserved tissues of an
E. mineralization
F. trace fossil
5. all the fossils ever discovered on
Earth ______
6. a chart that divides Earth’s history into
7. the change over time in populations of
related organisms______
G. mold
H. carbonization
I. geologic time scale