Basilosaurus - Mississippi's state fossil, aka "King Lizard", petrified fossil - when bones of ancient organisms turn to stone, mold - the space left when an organism turn, paleontologist - scientist who uses fossils to study the past, carbon film - a thin coating of a fossil, looks like a stamp, fossil - the ancient remains of once living organisms , amber - tree sap, can have fossils preserved in it, relative age dating - way to describe one fossil's age by comparing it to one who's age is known., trace fossil - any impression or preserved sign of activity, burrow - example of a trace fossil, where an ancient organism once lived. , index fossil - a fossil used to identify different time periods in Earth's geological history, sedimentary - type of rock that would most likely contain fossils,

Fossils & Geologic Time

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