undet. Mollusca

Geological context: Late Cretaceous, Fox Hills Fm, Trail City Mbr. Collection locality: float, concs. in river bed, undifferentiated Limopsis - large Gervillia layers, high bluff on N bank of Grand River, about .5 mi W of Bullhead, Corson County, South Dakota, USA. Collected by Karl M. Waage, 1956/1959. IP number 902735; lot count 1; taphonomy=concretion; accn=IPA.07111; associatedwith=original label stored with this specimen: IP.902707,on same slab: IP.902735,IP.902714,IP.902715,IP.902724,IP.902725,IP.902726,IP.902727,IP.902728,IP.902729,IP.902730,IP.902716,IP.902717,IP.902718,IP.902719,IP.902720,IP.902721,IP.902722,IP.902723,IP.902749,IP.902750,IP.902751,IP.902752,IP.902753,IP.902754,IP.902755,IP.902756,IP.902757,IP.902758,IP.902759,IP.902760,IP.902736,IP.902737,IP.902738,IP.902739,IP.902740,IP.902741,IP.902742,IP.902743,IP.902744,IP.902745,IP.902746,IP.902747,IP.902748,IP.902708,IP.902709,IP.902710,IP.902711,IP.902712,IP.902713.