Macroconch

YPM 43302, right side

Late Cretaceous, Maastrichtian, Fox Hills Fm, Trail City Mbr, Little Eagle Lithofacies, Upper nicolleti Assemblage Zone. Concretions, section A, 5.5 ft above base of unit 6, lot 3, exposure at toe at W end of spur, on E side of E tributary of Little Oak Creek, and 4 mi SSW of Little Eagle, Little Eagle Quad., SW SE NE Sec7T19NR27E, Corson Co., South Dakota, USA. Collector: Waage, K.M. 1959.

Left side