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BIOL301 Exam I

Fossil Record Terms Exam I

QuestionAnswer
Fossils Remains of any ancient organism
Paleontology The study of life of the past
Fauna Critters
Flora Plants
What is the use of Paleontology? Traditionally, dating of rocks. Others might say the aesthetic value of collecting fossils
Biostratigraphy Use of fossils to date rocks
Who was George Cuvier? Father of comparative anatomy, brilliant anatomist, was able to describe and compare extinct and living animals. Showed that many fossils belonged to groups which could no longer exist.
Modern Synthesis Combination of Darwinian evolution with genetics and ecology
Macroevolution Evolutionary processes acting above the level of species
Stratigraphy The study of layers of rock
Lithostratigraphy Based purely on characteristics of rock. Basic unit is a formation.
Formation Unit of rock which has a distinct description and can be mapped.
Member A subdivision of a formation
Group Multiple formations grouped together usually due to related geologic conditions of formation
Supergroup Multiple groups, grouped together because of related tectonic conditions
Angular Unconformities Gaps in the rock where erosion occurred rather than deposition. Two layers of rock meet that are inclined at different angles to one another
Disconformity gap between two sedimentary layers that are parallel, erosion, but no tilting
Nonconformity Where sedimentary or volcanic rocks lie directly or metamorphic rocks (i.e. sandstone on granite)
Chronostratigraphy Based upon absolute dates, completely independent of rock type. Determined by radioactive decay of unstable isotopes
Magnetostratigraphy Matching the polarity differences can correlate rocks around the world
Chemostratigraphy Study of stable isotope trends through time (most powerful tool used in paleo studies), used in study of paleoclimates
Created by: 604993700
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