I'm not quite comfortable with the possible IDs offered for these three fossils. Again, I sincerely thank anyone who chimes in with even a guess.
A0003 -- Myalinella sp. or other bivalve, or something else? It has been suggested this is a Coprolite.
C0004 -- Lycopod leaf upper end both halves? The part that looks like Coprolite has a "peanut shell" pattern in the hollow of the half on the right.
C0085 -- Cyperites? I'm not convinced. Not comfortable with the taper. Perhaps a spine, either plant, arthropod or marine?