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The stem pieces can look like beads; the body or calyx pieces are odd flattened shapes.
Limestone rock now, used to live in shallow tropical seas that covered what is now Indiana.
In large blocks of Indiana Limestone protecting the shorline at Montrose Point, Chicago.
Spotted on Apr 10, 2010
Submitted on Apr 10, 2010
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Read more about Indiana Limestone: http://en.wikipedia.org/wiki/Indiana_Lim...
Read more about fossil crinoids: http://www.kgs.ku.edu/Extension/fossils/...