echinoderm ossicle

[Gen. et sp. indet.]

Different views of a single element, 3 mm at its biggest dimension. I find a lot of echinoids as well as bourgueticrinid and starfish ossicles in the sediment. What's your opinion? Calyx fragment?

Lower Campanian, marine, southern Poland.

[Al Dente]

I’m pretty sure it is part of a crinoid calyx. Here’s a Democrinus showing similar brachials. From this website-https://www.pbase.com/hajar/chalk_seas

[Gen. et sp. indet.]

Isn't these proximale, basals and radials? I can see no brachials.

[Al Dente]

34 minutes ago, Gen. et sp. indet. said:

Isn't these proximale, basals and radials? I can see no brachials.

You are right, I should have said radial.