Bryozoan

Rugose coral nugget

A horn of horn coral, less than 2cm from end to end

possibly crinoid arms

Bryozoan

tiny black tabulate coral

Rock Full of Bryozoans

There are still more unexposed segments in the middle of the rock.

Mini Slice of Rugose Coral

This one is a little over a centimeter across.

More Coral

The piece is smaller than a fingertip.

Crinoid mess

These are easy to find, and fun. I love it when the cavities are filled with quartz.