tiny shell ID?

[Zenmaster6]

I found this in Washington state, Oligocene era. Its quite small but doesn't have the same horizontal striations of the other bivalves I found.

It has vertical striations like a scallop (not that I suggest it is one)

[ynot]

It looks like a clam (bivalve).

Others may be able to give a better ID on this.

[Rayminazzi]

Looks like a variety of Lima bivalve perhaps

[KimTexan]

Looks like a variety of Pectin, which I have no clue.

[Zenmaster6]

7 minutes ago, KimTexan said:

Looks like a variety of Pectin, which I have no clue.

thanks for the point in the right direction. : )

[Zenmaster6]

10 minutes ago, Rayminazzi said:

Looks like a variety of Lima bivalve perhaps

It does have that shape certainly