Devin's Geology

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Can you name the Devin's Geology?

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all strata are horizontal when they form
evidence of a meteor impact;high concentrations of an element that is rare on earth but common in meteorites
Earth's Absolute Age
tiny spherical floating forms who make up deep sea sediment
recreated early environments through the use of amino acids incorporated into proteins
an abrupt shift back to full glacial conditions; 13,000 years ago
what period did the trilobites suffer their last extinction
large portions of continent that have undergone no substantial tectonic deformation
burial of trees -> decrease O2
Swimmer; pursued prey by jet propulsion
sedimentary process that removes CO2 from the atmosphere
when depositional environments migrate laterally; sediments fo one enviornment lie on top of those from the adjacent one
an organism whose cells are characterized by a nucleus and other complex structures
natural balance; the root is as big as the mountain
Dollo's Law
resembling mammals; legs vertical beneath the body with complex and powerful jaws
first hominid species to to migrate past Africa
marine fauna; invertebrate swimmers
Dates of Creatceous mass extinction
What animal evolved from a carnivorous land to a large marine predator during the Eocene?
when/ where did Homo Sapiens evolve?
animal intermediate in from between Humans and Apes
bony fishes characterized by symmetrical trails, specialized fins, and short jaws
similar rocks on opposite sides of the valley seem to have been connected
most abundant rock of our surface
counteracting forces that stabilizes systems
each atom with a unique atomic weight
formation of Pangea
first reptiles to invade the marine realm w/ paddle like limbs (modern seal)
formation of early atmosphere
Age of Dinosaurs
spreading of trees -> increase O2
Formation of the moon
the physical and chemical principles operating today have operated the same throughout history
fragmentation of Pangea
Age of Mammal
hooved herbivores
increasing wavelengths as light travels through space- supports big bang theory
carried tropical warm waters from the Pacific through the Mediterranean/Gulf of Mexico and back
Cope's Rule
3 glacial centers
last glacial maximim?
How did Primates migrate to North America?
large rocks far from their parent bed rock that are too large to have been transported by any means other than continental glaciers
emergence of earliest homminids
first skeletal fossil- Neoproterozoic
Humans are the only living descendent of (blank)
earliest example of modern plate tectonics
What were the secrets to the success of Angiosperms?
produced fossils in the from of cysts
age of the moon
sea spreads landward
when did humans invent agriculture?
blunt tooth shell crushers (enormous turtles)
'the present is the key to the past'
'fish lizard'- top predator, marine mammal
largest Precambrian shield
amniotic egg
Select extinction of small tooth herbivores can be attributed to...
3 domains of life
large armored-head, jawed fish who fed on smaller fishes
oldest Eukaryote fossil- 2.1 Ga
composition of early ocean
two groups of mammals
fish-like vertebrates with fossilized teeth
oldest boens applied to the Homo genus?
seaward migration of shoreline
the oldest strata lie at the bottom and higher strata are excessively younger
destroys systems through one directional force
arthropods with heavily calcified, segmented bodies
start of the modern Ice Age
mountain building from compression of continental crust and additional igneous material
similar biological forms evolve in groups that belong to different branches of the tree of life
the intrusive igneous is always younger than its surrounding rock
structure allowing respiration

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Created May 9, 2011ReportNominate
Tags:devin, geology