These look like heavily eroded Gryphia or Exogyra, Cretaceous fossils mostly from central Texas, but anywhere subtropical Cretaceous can be found.
I have similar to the center item. I cannot remember the name but bivalve comes to mind.
Those are unfamiliar to me, but I am not much for fossils. I think there would be better results on the fb group "Texas Rocks & Fossils" - they do ID all the time. - Especially if there is info on where collected.
Do you know anyone that could help me with identifying some possible fossils? Thanks very much for your help! - From: Laura Lynn Boyd (Lauralynn1953@gmail.com)
If you can help, reply to the thread so we all find out what you think! Walt