Two sorts of cephalopods are in this collection. The first is very slender orthoconic nautiloid that shows the septa clearly. A couple of these were ground down to expose the siphuncle, which was not well preserved in either. It appears to be cylindrical and slightly excentric. The septal necks are not clearly recurved or extended. The siphuncle appears to be orthochoanitic rather than cyrtochoanitic, hence its tentative assignment to Michelinoceras. Cameral deposits are rather strong, particularly in the posterior part of the shell and are of the mural type. Michelinoceras has a long range, about the same as that of the snail with which they are associated in this collection.

The other cephalopod is a compressed involute coiled species with a relatively thick shell. The radiating growth lirae are bent into a wide shallow saddle over most of the flanks and swing forward into a graceful linguiform bow over the ventrolateral shoulder. There are signs of a rather deep ventral sinus, but the ventrer is missing in all the specimens. This sort of sculpture suggests the goniatites more strongly than the nautiloides. The shape and ornamentation are particularly reminiscent of the genus Agoniatites and for this reason this is regarded as questionably of Middle Devonian age. There are, however, other forms with this sort of scultpture in the Upper Devonian and in the Upper Mississippian. The Mississippian shells, however, generally have also some longitudinal lirae crossing the linguiform bow and are thin-shelled.. So Middle, or perhaps Upper, Devonian is the most reasonable guess.