Limopsis sp.
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
Geological context: Late Cretaceous, Fox Hills Fm, Trail City Mbr. Collection locality: various layers in road cut on E side of spur and on W side of old US 12 about .75 mi S of intersection with Wakpala road, N side of hill with Ridgeview 1954 bench mark, and 4.5 mi S of Mahto, Corson County, South Dakota, USA. Collected by Karl M. Waage, George Colton, 1949. IP number 562101; lot count 1; taphonomy=concretion; accn=IPA.07048; associatedwith=IP.562751,IP.562753,IP.562754,IP.562761,IP.562770,IP.562771,IP.562772,IP.562773,IP.562762,IP.562763,IP.562764,IP.562766,IP.562767,IP.562759,IP.562760,IP.562752,IP.562755,IP.562756,IP.562757,IP.562758,IP.562765,IP.562768,IP.562769.
Yale Peabody Museum’s own description