Yes, from what I can see, the majority of the pictures are Nautiloids, ie: cephalopods. The one pictured towards the end appears to be a coiled cephalopod. Cephalopods continued on to this day in the form of the Chambered, and the Paper Nautilus. The segment lines represent the growth/chamber lines. The other photos appear to be brachiopods, the one in the group picture with the "butterfly wings" appears to be Mucrospirifer. as to the others I could guess but would proably be wrong as there are over 3,000 known types. I wish the area I am in had the wealth of fossils you are finding. My area was coverd by the Silurian Sea, but is mostly unavailable. Good luck in your collecting both fossils, and bottles.