Impression fossil or pseudofossil

[HeartandFist]

Here's a piece of shale I found near Pueblo, CO. The formation comes from the Western Interior Seaway of the Upper Cretaceous. The raised striations lead be to believe this could be an impression of a marine organism, or just a psuedofossil. Any help with the ID would be amazing. Thank you!

- Geoff

P.S. the measurement units are inches

[bone2stone]

^{Impression of a "fish" scale.}

^{Jess B.}

[ZiggieCie]

Welcome to the Forum. and nice find.

[Auspex]

I'll go along with fish scale; pretty neat!