Statistics for Fossils and Geologic Time

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General Stats

This quiz has been taken 16 times
The average score is 7 of 58

Answer Stats

Hint	Answer	% Correct
What rock is put down in horizontal layers?	Sedimentary	60%
What is found almost exclusively in sedimentary rock?	Fossils	40%
	Jurassic	40%
	Cretaceous	30%
Largest period of geologic time	Eon	30%
Second largest period of geologic time	Era	30%
The amount of time it takes for one half an isotope to decay	Half-life	30%
Law stating that the oldest rock layers are on the bottom, and get younger going up	Law of Superposition	30%
	Mesozoic	30%
Three eras	Paleozoic	30%
Longest geologic time unit of Earth's history	Precambrian	30%
Periods of Mesozoic era	Triassic	30%
Rocks deposited in horizontal layers are folded or tilted, then eroded	Angular Unconformity	20%
Periods of above	Cambrian	20%
	Cenozoic	20%
Stratified rock rests upon a layer of weathered unstratified rock	Nonconformity	20%
	Ordovician	20%
Third largest	Period	20%
	Silurian	20%
Age of the Earth	4.6 byo	10%
What appeared during Jurassic?	Birds	10%
	Devonian	10%
Rocks were exposed and eroded then new layers were deposited on top	Disconformity	10%
Smallest	Epoch	10%
Fossilized stones some dinos used in digestion	Gastroliths	10%
A record of Earth's history from 4.6 bya to the present	Geologic time scale	10%
What evolved during Quaternary?	Humans	10%
What broke up during Triassic?	Pangaea	10%
	Permian	10%
	Quaternary	10%
Gaps in the rock sequence	Unconformities	10%
What appeared during Ordovician?	Vertebrates	10%
Silurian is also called?	Age of fishes	0%
What can be determined by the rate at which a stream erodes its bed?	Age of the stream	0%
	Amber	0%
A thin carbon residue outline left after heat and pressure force liquid and gases out	Carbonaceous Film	0%
Fossil formed when natural cements fill in mold and harden	Cast	0%
Fossilized waste material	Coprolites	0%
What must happen in order for an organism to become a fossil?	Covered quickly and completely	0%
	Freezing	0%
Organisms developed what during Paleozoic era?	Hard parts	0%
What occurred during Cenozoic?	Ice Ages	0%
Fossils found exclusively in rock layers of a certain geologic age	Index fossils	0%
What appeared during Cambrian?	Invertebrates	0%
Law stating a fault or intrusion is always younger than the surrounding rock	Law of crosscutting	0%
What happened during Permian period?	Mass extinctions	0%
	Mississippian	0%
Cavity left when an organism dies and decays	Mold	0%
Types of original remains	Mummification	0%
What is the preservation of organisms?	Original Remains	0%
	Pennsylvanian	0%
Original organic material replaced by new materials	Petrified Remains	0%
Looking at the amount of a radioactive isotope and the daughter material	Radioactive decay	0%
What evolved during Silurian?	Spiders and millipedes	0%
	Tar seeps	0%
Periods of Cenozoic era	Tertiary	0%
Preserved 'footprint' of an organism	Trace fossils	0%
What are alternating layers of dark and light rock particles?	Varves	0%