Fossils Flashcards
What is are the traces or remains of animals or plants that lived in a previous geologic time called?
Fossils
What is the study of fossils called?
Paleontology
What are the fossilized marks of evidence of past animal movement such as tracks, footprints, borings, and burrows, can still provide information about prehistoric life?
Trace Fossils
What is fossil that is used to establish the age of rock layers because it is distinct, abundant, and widespread and only existed for a short period of time?
Index Fossil
What do you call it when organisms become trapped in the sticky sap and are preserved when the sap hardens?
Amber
What do you call it when bodies are wrapped carefully with strips of cloth which causes the bacteria to die out?
Mummification
What do you call it when organism fall into the tar seeps and are trapped and preserved?
Tar Seeps
What is it called when organisms freezes, then preserves the whole body?
Freezing
What type of fossil results in the formation of a near-perfect mineral replica of the original organism?
Petrification
What type of fossil forms when dead organisms are squeezed between layers of rock,
leaving behind the organism’s carbon imprint in the rock?
Carbon Film
What is an organism or shell is buried in rock and dissolves, creating a a space shaped like the original organism?
Mold
What type of fossil is it called when sand or mud will fill a cast and create a replica of the original organism shell?
Cast
What is fossilized dung or waste materials called?
Coprolites
What type of fossil is it called when some dinosaurs would eat these, and they would help grind food in their digestive system (aka “stomach stones”)?
Gastroliths