Phillipfiltz Posted December 26, 2020 Share Posted December 26, 2020 Hey guys! so I recently went looking in an old local creek for arrowheads and came across a grapefruit sized clay rock. (Assuming it was clay due to the clay in the area) once I busted it open I got many voids and very small round objects. Any help will be much appreciated!! Link to comment Share on other sites More sharing options...
Thomas.Dodson Posted December 26, 2020 Share Posted December 26, 2020 Looks like crinoidal limestone. The voids and circular objects you see are the remains of the columnar sections of crinoids. I also see some what looks like some small brachiopods, maybe some bivalves. 1 Link to comment Share on other sites More sharing options...
jeannie55 Posted December 26, 2020 Share Posted December 26, 2020 I do love a Swiss cheese linking rock. Nice find. 1 Link to comment Share on other sites More sharing options...
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