Winter 2006/7: Sorting of other Rockford macrofossils.  



Phylum: Arthropoda
Class: Ostracoda
A marine crustacean. One specimen is shown here, second from the left, in this microfossil composite which includes from left to right: scolecodont, ostracode, scolecodont, 2 charophytes, and a quartz sand grain. All specimens shown are less then 1 mm in size.

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