Help with micro fossil ID

[Lone Hunter]

All of these came from LENS sample, in first set I know the brown tooth is Echnodus, what are the other two? Oh, whatever that little dot with 2 white root looking things is maybe somewhat irrelevant, it disappeared.  Next set of things I had put on tape so really couldn't move them, some of it  just disregard, but other than Echnodus teeth what else is there? Esp. the odd little black ball. The largest tooth is 1/2 cm.

Edited July 1, 2021 by Lone Hunter

[DPS Ammonite]

If this sample is from Post Oak Creek in Sherman, the sphere could be a reflective glass ball used in highway line marker paints. The is/was a factory nearby that dumped spheres into the creek. Maybe the balls were stained dark. Another possibility is that they are phosphatic nodules.

[Lone Hunter]

Not from there, it was from area close to DFW airport.