Not a clue what this is...

[Randyw]

Hi. Here’s another item I’m hoping you can identify for me. It’s from a bag of matrix from the aguja formation in Texas. It measures 5 mm in length. It’s a glossy black. I really have no clue on this one. I kind of suspect it’s some kind of seed but .....

im sorry the pictures aren’t better but I don’t have anyway to take better ones.

thank you.

[GeschWhat]

Ooooo, very cool! 

[Troodon]

Interesting have not see this guy before, very cool.  Looks complete no broken edges visible.   More views possible?

 

What palm seeds look like from there

 

FOSSIL PALMS (ARECACEAE, CORYPHOIDEAE) ASSOCIATED WITH JUVENILE
HERBIVOROUS DINOSAURS IN THE UPPER CRETACEOUS AGUJA
FORMATION, BIG BEND NATIONAL PARK, TEXAS
Steven R. Manchester,Thomas M. Lehman and Elisabeth A. Wheeler

[Randyw]

Yes it is complete with nothing broken or rough. I can take more pictures but all 3 sides look exactly the same. It’s Y shaped.. wich views would you like? Can’t be a palm seed as those are round And this is oval in side view With 1 sharp point on bottom but Y shaped in end view. All gloss black except the sharp point wich is light tannish colored

[Peat Burns]

My first thought was a trigonous achene of the family Cyperaceae.  It might be a bit big for that though, at least as compared to modern forms.

[Randyw]

Interesting thought and there are similarities except they have a bulge in the center and thus is concave in the centers Not convex.. it looks from the top exactly like a capital Y