historical geology & paleontology earth’s history a story told in the rock layers but some...
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![Page 1: Historical Geology & Paleontology Earth’s History A story told in the rock layers But some chapters are missing 550 millions yrs. Ago to present](https://reader036.vdocuments.mx/reader036/viewer/2022072005/56649ce55503460f949b313b/html5/thumbnails/1.jpg)
GEOLOGIC TIME: UNDERSTANDING EARTH’S PAST
Historical Geology & Paleontology
Earth’s History A story told in the rock layers
But some chapters are missing 550 millions yrs. Ago to present
![Page 2: Historical Geology & Paleontology Earth’s History A story told in the rock layers But some chapters are missing 550 millions yrs. Ago to present](https://reader036.vdocuments.mx/reader036/viewer/2022072005/56649ce55503460f949b313b/html5/thumbnails/2.jpg)
GEOLOGIC TIME: UNDERSTANDING EARTH’S PAST
Key “Principles” to Reading Earth’s Past Principle of Uniformity Principle of Original Horizontality Principle of Superposition Principle of Crosscutting Relationships Principal of Faunal Succession
Index fossils
![Page 3: Historical Geology & Paleontology Earth’s History A story told in the rock layers But some chapters are missing 550 millions yrs. Ago to present](https://reader036.vdocuments.mx/reader036/viewer/2022072005/56649ce55503460f949b313b/html5/thumbnails/3.jpg)
GEOLOGIC TIME: UNDERSTANDING EARTH’S PAST
The Fossil Record Methods of fossilization
Non-traditional methods Frozen Amber Tar Mineralization & replacement
Traditional methods Cast & mold
![Page 4: Historical Geology & Paleontology Earth’s History A story told in the rock layers But some chapters are missing 550 millions yrs. Ago to present](https://reader036.vdocuments.mx/reader036/viewer/2022072005/56649ce55503460f949b313b/html5/thumbnails/4.jpg)
GEOLOGIC TIME: UNDERSTANDING EARTH’S PAST
The Geologic Time Scale (Read from bottom up)
Era (3) Periods (12) Epochs (7)
![Page 5: Historical Geology & Paleontology Earth’s History A story told in the rock layers But some chapters are missing 550 millions yrs. Ago to present](https://reader036.vdocuments.mx/reader036/viewer/2022072005/56649ce55503460f949b313b/html5/thumbnails/5.jpg)
GEOLOGIC TIME: UNDERSTANDING EARTH’S PAST
Eras Cenozoic – recent life Youngest Mesozoic – middle life Paleozoic – ancient life Oldest
![Page 6: Historical Geology & Paleontology Earth’s History A story told in the rock layers But some chapters are missing 550 millions yrs. Ago to present](https://reader036.vdocuments.mx/reader036/viewer/2022072005/56649ce55503460f949b313b/html5/thumbnails/6.jpg)
GEOLOGIC TIME: UNDERSTANDING EARTH’S PAST
Periods Quaternary Youngest Tertiary Cretaceous Jurassic Triassic Permian Pennsylvanian Mississippian Devonian Silurian Ordovician Cambrian Oldest
![Page 7: Historical Geology & Paleontology Earth’s History A story told in the rock layers But some chapters are missing 550 millions yrs. Ago to present](https://reader036.vdocuments.mx/reader036/viewer/2022072005/56649ce55503460f949b313b/html5/thumbnails/7.jpg)
GEOLOGIC TIME: UNDERSTANDING EARTH’S PAST
Epochs Recent Youngest Pleistocene Pliocene Miocene Oligocene Eocene Paleocene Oldest