Part II - State of New Jersey

I18CRE'PACEOIJS FOSSILSFamily Kostocerat,iilac IIyatt. 1894Gemls So: figs. 1-4.Ijirlt~r~~ocsras patiper (\Vhitfield). Spatli, 1921, Aout.11 African 3111s.Ann., vol. 12, pt. 7, pp. 249, 251.Descriptio?l.-This spccies rests essentially allon one specimen, afragment of a spire1 shell that preserves about olie artd one-third volut,ions,linseptatc except for tlie last two septae. The upper surface ofthe mliorl is deeply impressed, indicating that the whorls of the spircwere in close contact; iiml~ilicl~s about one-fifth the diameter of thesl~ell. Ribs in the ilnpresscd zone simple? curved strongly back\\rar(l:35 per xvhorl; margin of zone a sharp sl~ouldcr. Outer surface of \vliorlgently convex, bearing about 40 ribs per ~olution, as a few fork at tllashoulder, all strongly i~ielined forwtird; and two rows of tr~hcrcles, 20per volution, that t~lterl~ate in position with respect to the ril;s. 111::upper rollr at ahont the middlc of the outer surface and the lower ataholit the line of contact with the snccr:eding whorl; two deep constrictionspresent on last half-v.horl preservccl. Lowcr surface of \vl~orlstrongly convex, bearing al~out 30 ribs, curved ge~itly forward, someof mliieh join at the umbilicus. TJrnbilicus apparently smooth. Thchrolren larger cnil of the spccimen appears to flare slightly and coul(1well pass into a rctroversal or otl~er\vise aberrant portion. Whitfielcl'sfignrc of thc suture is satisfactory.12cn~arl~s.-In acldition to the type specimen, Weller notes "twoot,lier specimens * ' both of them much distorted fragments wliiclldiffer in some respects fro~n the type but nre too imperfect for certainidentification." Spath referred the spccies paltpcr to UidyntocornrFIyatt, 1894, but that genns has a loosclp coiled spiral form in whichthe n.horls arc not in contact and whicli laelrs constrictions on thespirc. The species scems much better placed in Nostocerns.NEW JERSEY GEOLOGICAL SURVEY