Pennsylvanian fossils in Cretateous creek need a little help!

January 2

This is my last post for the foreseeable future and want to get an ID on all of these. Found this last summer after big flood churned up creek in Eagle Ford formation, it's not unusual to find imported erosion control rocks with crinoid stems but they're usually big and heavy and harder than concrete so when i saw this small one I grabbed it. I plopped it down on dog bed and took one practice pic (about 10" long #1) then when I picked it up it started to fall apart and I realized it was still wet, never completely cured, still had soft clay. I'm not familiar with rocks out west is this normally how fossils are found there? How did this rock manage to get dug up, loaded, travel at least 50 miles then get dumped and never dry out or get smashed to peices? Pic #2 is what remained after removing all soft parts and drying. Anyway it was a mini fossil hunting trip all in one rock and just wish everything wasn't so tiny! #3 was the prettiest but can't tell if it's a brachiopod or not. #4 Marginfera? #5 brachiopod? #6 columnal I thought would be easy to ID but no. #9 Composita sp? #10 unknown gastropod and crinoid stems. #11 another Composita? I'll do a second post with the rest it's too many pictures.