somethings or nothings - NJ Eocene/Pleistocene

[pinkus]

I'm still working on going through my old finds from the Eocene aged Manasquan Formation of Monmouth County, New Jersey. I could definitely use some other eyes on these pieces. All of these were picked up from gravel bars of a stream and could be of Eocene or Pleistocene age.

1 - I think this is a bivalve with the beak at the top. The reverse picture below, I think, reinforces this.

2 - I'm not used to this texture. Perhaps glacially deposited, but, is it just geologic?

3 - Similar texture to #2. The easy call would be a shell impression

4 - Again, similar texture to #2 and #3. Close up picture below.

5 - Perhaps just a concretion or stone, but I keep seeing bivalve.

6 - Coral? Bivalve? Nothing? This is the normal Manasquan Formation texture for steinkerns. See other views below.

This is the reverse side of each piece.

Close up of #4

Other views of #6.

[Herb]

I would say your ID's are  as good as you are going to get considering the specimens. #4 looks like a bryozoa. 5 looks like a rock. 6 a burrow. best guess

[Fossildude19]

# 3 looks like a partial imprint of a Mucrospirifer  brachiopod.
I'm guessing these are glacially transported pebbles.
In that case, these could be Devonian rather than Eocene in age. 
Regards,

[Plax]

+1 for glacial. That would mean that these are stream finds and not dug from the lag though. If the fossils were dug from the lag (the insitu formation in the bank) they would still be paleozoic fossils transported from inland paleozoic outcrop areas. You don't need a glacier to transport gravel. The last glaciation and melt certainly transported a lot of paleozoic material though.