unknown bivalve

[diocrisseashells1000]

Hello Dave,
                  I think #1 has a Pinnidae features. it does not have pearly nacreous and pallial lines as seen in pteriidae specie, it looks like Pinna rudis but different in shape, no scales and spine, and the internal color is more intense than outside, and the location is different.I might be correct in the family name,but the specie name is still unknown, ( :'( sad to say its already broken,)
                #2 would this might be a coquina specie ? i found it along with this kind of specie in a sandy bottom.

Diocris.