**Resources**
_____________________________________________________________________________

Feather, Ralph M., Susan Lach Synder, and Dale T. Hesser. "Merrill Earth 
	Science." Westerville, OH: Macmillan/McGraw-Hill, 1993.


UAF, Dept of Geology & Geophysics, Geologic Time Scale
	-http://www.uaf.edu/geology/geo_time.html

Geologic Time Scale
	-http://www.smartlink.net/~mapmaker/geotime.htm

Geologic Time Scale
	-http://www.wyoming.com/~wdc/timescal.htm

Geologic Time Scale
	-http://lrs.ed.uiuc.edu/students/b-sklar/geologic.html

Trilobites, Ammonites, and Belemnites
	-http://www.150.si.edu/150trav/discover/tril.htm

The Dinosaur's Reign
	-http://www.150.si.edu/150trav/discover/dino.htm

Mastodon and Mammoths
	-http://www.150.si.edu/150trav/discover/mast.htm

Plant Evolution
	-http://www.clas.pdx.edu/~Barbur/E

Geologic Time Scale
	-http://www.dispatch.com/dino/time.html

The Geologic Time Scale 
	-http://vulcan.wr.usgs.gov/Glossary/geo_time_scale.html