ADDITIONAL; REVIEW CARDS AND OTHER TRIVIA Flashcards
Fossils of organisms that lived during a relatively short, specific time period but were widespread geographically.
Index Fossil
Fossils that indicate specific environmental conditions (such as a particular habitat or ecological setting) rather than a specific time period.
Facies Fossil
These are also called ichnofossils. These are preserved evidence of the activities of ancient organisms, such as footprints, burrows, nests, and scat.
Trace Fossils
How many eons are there in the geologic time scale?
Four
Which eon spans the longest time period in Earth’s history?
Proterozoic
What is the name of the current eon in the geologic time scale?
Phanerozoic
In which eon was the oceans formed?
Archean
This eon was also known as the fiery Earth.
Hadean
Which eon literally translates to “first life”?
Proterozoic
Which eon provides for the first evidence of life?
Archean
Which eon literally translates to “visible life”?
Phanerozoic
Which era literally translates to “ancient life”
Paleozoic
Which era is the current time?
Cenozoic
In which era did the dinosaurs dominate the Earth?
Mesozoic
In what era was the largest extinction where 90% of marine life was wiped off?
Paleozoic