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Page: 1
Slide No. 1
FOSSILS
Present is theKey to the Past
Page: 2
Slide No. 2
Macrofossils
Microfossils
Mollusca
Radiolar snai
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Slide No. 3
from La BreahtolS
VertebrateFossils
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Slide No. 4
Trace Fossils
footprintscoprolites imprint
boringsburrows
s
dinosaur "dung"
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Slide No. 5
Preservation of organisms activity
Preservation of part of an organism
How most fossils become
1. hard part (carbonate, siliceous, bone)2. rapid burial (fine grained sediments)3. preservation factor (chemical
)lacsihypnda
1.2. burial and than
castndld amoreplacement
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Slide No. 6
Types of preservation
CarbonizationPermineralization
ReplacementR crystalizatione
FrozenMummification
Without alteration
With alteration
Original shell or bone
Dinosaur bone
Fish
erbmAniylF
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Slide No. 7
Data Derived from Fossils
Indirect EvidenceDirect Evidence
Tracks Dinosaur Nest
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Slide No. 8
organismClues about the
Sha kr teethsize
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Slide No. 9
What nfi ro mation?deiverdbeotnnac
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Slide No. 10
Mammal
Aves AmphibianPis
Reptile
esc
Where does the dinosaur belong?
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Slide No. 11
Reconstruction
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Slide No. 12
EATH CONDITIONSD
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Slide No. 13
Environmentalevidence
Capitola, Californialayersstorm verus living conditions
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Slide No. 14
Paleogeography
movement ofthe Earth' s Crustthrough time
Pangea
Significance ofPast Life
coal, oil,stratigraphyrelative time
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