Unidentified fish

[LeytonJFReid]

These fossils were bought for me at an auction selling scrap cuts. The location and age of these fossils is completely unknown. I believe the big ones are a Knightia species but have no clue for the two small ones. There's also a weird one that might be a clam. All photos are cropped and contrasted except for one of the small ones as it only made it harder to see. Paper is college ruled, each line is 7.1 mm

Knightia?:

Other two fish:

Clam?:

[Fossildude19]

1 and 2 are Knightia eocaena.

3 is a Diplomystus dentatus  anal fin and caudal fin (tail).

4  are Knightia eocaena again.

5 I think may be the back half of a Mioplosus labricoides. Alternatively, it could also be something like Amphiplaga brachyptera. Hard to tell without a head.

6 and 7 are either  Knightia eocaena or Gosiuteichthys parvus.  A count of vertebrae or fin rays would need to be done, to determine for sure one way, or the other.

8 - looks like Phaerodus scales.

[LeytonJFReid]

@Fossildude19Based off of this information can you guess the formation and/or age?

[Fossildude19]

These are probably all Green River Formation. So Eocene.

6 and 7 may be from a different member of the Green River Formation.
Not sure, as the ID's are not solid.