Texas Echinoid Fossil

Unidentified echinoid found in Fort Worth, Texas. It is existed in the Cretaceous Period.  My guess is it has the word aster in its name.

UPDATE (March 2020): This might be an Epiaster whitei? from the Kiamichi Formation of Denton County. Fort Worth is a very large area and exists in four counties (Tarrant, Denton, Parker, Wise).
See web site https://www.txfossils.com/echinoids-grayson-county

Thanks to Herb for the fossil!

Crinoid Holdfast in Waldron Shale

Unidentified crinoid holdfast embedded in Waldron Shale of Clark County, Indiana. Currently working with the engraver to expose more of the fossil to see how extensive the root system is.  Fossil dates to Middle Silurian Period.

Monticulipora mammulata Bryozoan

Monticulipora mammulata bryozoan fossil found in Bullitt County, Kentucky.  This colony existed in the Ordovician Period.  Next picture shows a closeup of the small holes where the zooids lived.