Pennsylvanian Fossils

Went on a very quick (1/2 hour) fossil hunt with my kids and their cousins on Saturday. Looked at a road cut among Pennsylvanian (323-290 my b.p.) limestone and shale. Apparently, the shale represents periods when the sea water receeded and may contain river and lake deposits while the limestone represents the shallow sea of the period. Found some brachiopods and bryozoans (a net-like colony of fenestella) to be sure and perhaps a bivalve or two.

Also found two very nice sites on the fossils and geology of the area here in northeastern Kansas when looking to determine what we found.

Geology of Kansas
GeoKansas