Common modes of preservation
Relative dating
Absolute Dating
Modes of life
Taxonomic hierachry
100
is a process of fossilization that occurs when an organism is buried.
What is permineralization
100
helps us understand the relative age relationships of fossils found in sedimentary rock layers. The oldest rocks are at the bottom
What is law of superposition
100
technique used to date materials such as rocks or carbon, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates
What is Radiometric dating
100
that feed by straining suspended matter and food particles from water, typically by passing the water over a specialized filtering structure. Some animals that use this method of feeding are clams, krill, sponges, baleen whales, and many fish (including some sharks). Some birds, such as flamingos and certain sub-species of duck, are also filter feeders.
What is filter feeder
100
In biology, the largest of the divisions of living things
What is kingdom
200
process by which organic material is converted into stone through the replacement of the original material and the filling of the original pore spaces with minerals.
What is petrificaiton/petrification/silicification
200
as sediments settle form water, they form horizontal layers of rock.
What is Principle of Horizontality:
200
for a given radioisotope is the time for half the radioactive nuclei in any sample to undergo radioactive decay.
What is half-life
200
an animal that naturally preys on others.
What is predator
200
Biology. the primary subdivision of a taxonomic kingdom, grouping together all classes of organisms that have the same body plan
What is phylum
300
Fossils that preserve the structure of the original organically produced matter without actually preserving any of the original material
What is mineral replacement
300
states that an igneous intrusion is always younger than the rock it cuts across.
What is cross cutting relationships
300
is a variety of radioactive dating which is applicable only to matter which was once living and presumed to be in equilibrium with the atmosphere, taking in carbon dioxide from the air for photosynthesis.
What is carbon dating
300
an animal that feeds on carrion, dead plant material, or refuse
What is scavenger
300
A set, collection, group, or configuration containing members regarded as having certain attributes or traits in common; a kind or category
What is class
400
exhibiting obvious three-dimensional character
What is cast/mold
400
is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous.
What is unconformities (buried erosion surfaces)
400
Such a layer is called a key bed.
What is volcanic ash layers
400
Those that eat organic material in sediments are called
What is deposit feeder
400
A taxonomic category of related organisms ranking below a suborder and above a family or superfamily.
What is order
500
known as impression fossils. They do not contain any carbon material.
What is imprint
500
encasement in in amber/copal, mummificiaton, freezing, entrapment in tar/asphalt.
What is uncommon modes of preservation
500
a system of chronological measurement that relates stratigraphy to time, and is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships between events that have occurred throughout Earth’s history.
What is geologic time scale
500
invertebrate community, including crustaceans and polychaetes.
What is benthic
500
In biology, a genus /ˈdʒiːnəs/ (plural: genera) is a taxonomic rank used in the biological classification of living and fossil organisms. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
What is family, genus, species
M
e
n
u