Awhile ago, I posted some unknown recepticulites and didn't receive a definitive identification. Since then I cleaned up a fisherite which had a central protrusion on it. My mind went back to the unknowns and I semi convinced myself that these are "baby" fisherites and that the large "sunflower" head comes with age. The unknowns were about the size of the protrusion on this fisherite. Here are pictures of both. For all you wise paleontologists out there, is my theory plausible???
The babies:
The adult: