Miscellan
eous
eous
4.6 Billion Years is the most accepted value.
What is the age of the Earth (and solar system!)
Uplift and erosion results in missing time (sediment).
What is an unconformity?
This process leads to the eventual accumulation of oxygen.
What is photosynthesis?
Name of the largest mass extinction
What is the Permian Triassic Extinction
This super continent rifted apart during the Mesozoic
What is Pangea?
Last occurrence of an animal
What is extinction?
A shortlived, widespread fossil
What is an index fossil
Approxima te date of the oldest evidence of widespread photosynthesis
What is 3.5 billion years
Reptiles, Mammals and Birds
What are amniotes?
This sub group of reptiles dominated during the Mesozoic.
What are Archosaurs?
A mark left by a dinosaur's tail is an example of this type of fossil.
What is a trace fossil
The theory of geologic change that primarily results from erosion, deposition, and uplift
What is Uniformitar ianism
The cellular structure shared by bacteria and archaea.
What is prokaryotic?
Invertebrates with exoskeletons that first appear during the Cambrian.
What are arthropods?
The group of plants that containlignin
What are vascular plants?
The most important influence on sea level over long time ranges
Who is continental rifting (formation of oceanic ridges).
The amount of time it takes for half of a radiometric isotope to decay
What is a half life
Possibly the first animal
What is a sponge?
The age of the fishes occurred during this period.
What is the Devonian?
Location of the large Meteorite impact
What is the Yucatan Peninsula?
This type of material is preserved in burgessshale type localities
What are softbodied fauna
What is Cambrian fauna
Oder these events
(in class)
Evidence that oxygen was being produced but not accumulating (formed between 3.5 - 1.8 billion years ago).
What are banded iron formation
Period with the highest oxygen levels
What is the Carbonifer ous?
No ice at the poles impacted the ocean in this way
What is reduced circulation?