undet. Coleoptera
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: conc. 2, face on SW side of SSE-trending spur, 1.25 mi W of E end of Long's Ridge, Long's Ridge, and 6 mi W of Whitehorse, Dewey County, South Dakota, USA. Collected by Ian G. Speden, 1962. IPA.01028: South Dakota. Dewey County. conc. 2, face on SW side of SSE-trending spur, 1.25 mi W of E end of Long's Ridge, Long's Ridge, and 6 mi W of Whitehorse. [236; 103Hg]. Coll: Speden, I. G. 1962. Late Cretaceous. Maastrichtian. Fox Hills Fm. Trail City Mbr. Little Eagle Lithofacies. Protocardia-Oxytoma Assemblage Zone.; IP number 42104; lot count 2; accn=IPA.07048.
Yale Peabody Museum’s own description