1/30
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
Fossil
Any preserved remains from a once living organism (bones, teeth, coprolites)
Subfossil
Fossilization is only partially complete
Petrification
The process of how a fossil is made; death, sediment, mineralization
Paleontology
study of ancient life through the discovery, description, and study of fossils
Functionalism
Behavior doesn’t fossilize
Paleogenetics
study of past life through preserved genetic material
aDNA
Ancient DNA; recovery is difficult due to contamination and poor preservation
Paleocology
Study of ancient life interactions with their enviornment
Paleothermometer
proxies for past temperatures
Paleopluviometer
proxies for past rain and humidity
Stable Isotop
Variant of an element, does not radioactively decay
Fractionate
Isotopes move through natural cycles at different rates
Pangea
Singular continental land mass
Relative dating
Comparative, qualitative statements
Stratigraphy
Study of rock/soil layers and formation
Absolute dating
Age is calculated, quantitative value
Radioisotopes
atom form with an unstable nucleus
Half-Life
Time frame at which half of a radioactive sample is expected to have decayed
calibration
turning date into a useable calendar range
Therapsids
1st true mammals
Angiosperms
Flowering plant, pollenates, enclosed seeds
Kpg Extinction Event
Cretaceous-Paleogene extinction event. 75% terrestrial life extinct
Rafting Hypothesis
Primates survived ocean crossings on large vegetarian mats swept out by storms
Hominoids
All apes
Hominids
Humans, great apes, and ancestors
Hominins
modern and extinct humans
Savannah Hypothesis
Expansion of grasslands and constriction of forests encourages bipedalism
Postural Theory
Bipedalism encouraged for feeding from fruit trees, and can see predators better
Male Provisioning Hypothesis
Upright posture is useful to females/sexual dimorphism
Diastema
gap between bottom incisors and canine; creates space for upper canine
Knapping
Technique for making stone tools via the process of reduction. Flakes, cores, and hammer stone