Fossil Quiz 1: Introduction and Chapter 1 Flashcards
Define evolution
the belief that life started by chance, and millions of years of struggle and death slowly changed a few simple living things into many complex and varied forms through stages
Define Paleontologist
A person who studies fossils
Define permineralized fossils
fossils preserved by minerals hardening in the pore spaces of a specimen such as a shell, bone, or wood.
Define trace fossils
are not remains of plant or animal parts, but show evidence of once-living things
Who were the two men given credit for popularizing the modern teaching of evolution?
Charles Lyell and Charles Darwin
List two agents that erode and deposit sediments. Which agent is more powerful?
wind and water; water
What two elements must exist in the right amount for sediments to turn into rocks?
water and rock cement
What are the two most common rock cements?
calcium carbonate and silica
Give some examples where calcium carbonate can be found.
limestone, bottom of tea kettle, in Tums and Rolaids, chalk
When did most of the branches of modern science begin?
1600s and 1700s
What does TCSD stand for?
time, chance, struggle, and death
What types of sedimentary rocks are fossils normally found in?
flaky shale, gritty sandstone, or chalky limestone
What type of event would provide the right conditions to form fossils?
A flood
Briefly describe how a fossil can form.
When a plant is buried in sediment under flood conditions, the plant is preserved when the heavy sediment weight squeezes out extra water and encourages the growth of cement minerals that turn the plant into a fossil.
Why must fossilization begin quickly?
The plant or animal needs to be preserved quickly before it begins to decompose.