Microfossil from Placid Shale in Jack County Texas

[BobWill]

This came from a very barren site in far southwestern Jack County, Texas. I screened about a liter of bulk shale and only found 11 fossils total left in an 80 mesh screen! Macro fossils were about the same, a couple of crinoid stems and a few brachiopods from over 3 hours looking. The micros also included one uncertain coiled mollusk, 2 tiny brachiopods, one pinate bryozoan, 3 holothuroid spiciles, a small high-spired gastropod and a crinoid stem section. Scale is mm.

 

[ynot]

Fish tail bone(?)

[BobWill]

A  suggestion from a echinoderm expert was fish scapula. I know a crinoid doesn't have a scapula but is that a possibility? Here is a close up of the end with the flattened flange which would be the medial border.