I'm being called to dinner so, here's the last one for now. This is a multi-species piece from the Green River Basin of Kemmerer, Wyoming. It's from the Eocene. The large fish is Mioplosis lambracoides. The upper left holds a giant herring (grows to over 3ft) by the name of Diplomystus dentatus. And, the smaller minnow is Knightia alta.
then another garpike called Vinctifer comptoni. One specimen is minus the rostrum but, displays good scale definition. The other is a turned specimen where the head turned back over the posterior portion of the fish.
This specimen has been tentatively ID'd as Cladocyclus ferox. However, there are peculiarities in the angle of the jaw and in the scale formations. Another ID has this piece listed as an unconfirmed Osteoglossid (arowana)
Another specimen missing a positive ID is this Atractostid gar. It was originally ID'd as Vinctifer comptoni until it was acid-etched to bring the completely different scale formations. The skull is also much denser than is seen in Vinctifer specimens.