Other than generic Sand Tigers, I would need the age of the formation for the species

Definitely part of an ammonite

Rock with a mineral inclusion/seam.

Dupe of 86290

Please post 1 specimen per specimen

Rocks

Looks like ironstone which is often mistaken for a fossil as its color varies within the rock and often takes on weird shapes.

Petuch renamed a bunch of ecphoras with little justification. The rules of nomenclature state that the first naming takes priority. This is Ecphora quadricostata Conrad 1830.

Looks like water worn bone

Looks like water worn limestone, possibly cave travertine.

Ammonite

Assorted shark vertebrae centrums

One tooth per specimen

None of this has anything to do with fossils

Sorry, just a large rock

See: http://i2.cdn.turner.com/cnnnext/dam/assets/140419190233-boy-mastadon-tooth-02-story-top.jpg

Sand tiger of some type

Sorry, not a tooth, rock

Ray teeth, the root is actually the ridged part

Banded rock