Click below for a PowerPoint presentation about echinoids.
PBS Digital Studio has a YouTube channel called EONS. The first episode explores the evolution, diversity, and extinction of trilobites: click below
Related Rock, Mineral, Fossil, and Gem Websites
See how a stone sphere is made.
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of Hernando County, Florida.
Click below to learn about rock tumbling.
Montbrook Fossil Site Saber Tooth Cat
Topics of Interest
A detailed video about making a stone sphere
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