I believe this is Aeduella blainvillei, because it looks identical to the fossil of this type from Odernheim Red Beds. First, the face area structure is identical, with an eye-looking place in the area, with lines, potentially gills, running along the bottom front of the fish. Another prevalent feature is the shape of the fish, which is consistently somewhat angular and elongated, while sticking to an elliptical template, head to tail being slightly asymmetrical due to the spines curving up towards the top of the fish (with the head on the right). Overall, I think Aeduella blainvillei is the best candidate for this fossil.

What its It?