Baculites
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: 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 902397; lot count 1; accn=IPA.07111; associatedwith=on same slab: IP.902397,IP.902423,IP.902424,IP.902398,IP.902399,IP.902400,IP.902402,IP.902404,IP.902405,IP.902406,IP.902407,IP.902408,IP.902409,IP.902410,IP.902411,IP.902412,IP.902413,IP.902414,IP.902415,IP.902416,IP.902417,IP.902418,IP.902419,IP.902420,IP.902421,IP.902422,IP.902401,IP.902403.
Yale Peabody Museum’s own description