undet. Hoplitidae
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
Geological context: Late Cretaceous, Fox Hills Fm, Timber Lake Mbr. Collection locality: around top of SE-trending spur, in field SW of stock pond, .2 mi SSW of Fred Kost ranch house, and 1 mi E of SD Rt. 63, and 2.2 mi NNE of High Elk Hill, and 3.5 mi SSW of Eagle Butte village, Ziebach County, South Dakota, USA. Collected by Karl M. Waage, 1983. IP number 337141; lot count 1; original nature=chip/slab (multi-specimen); accn=IPA.07048; associatedwith=on same slab: IP.337139,on same slab: IP.337140,on same slab: IP.337141,on same slab: IP.337142,on same slab: IP.337143,on same slab: IP.337144,on same slab: IP.337145,on same slab: IP.337146,on same slab: IP.337147.
Yale Peabody Museum’s own description
