Limopsis striatopunctatus
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, Limopsis conc., 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. IP number 345202; lot count 1; taphonomy=concretion; accn=IPA.07048; associatedwith=IP.345213,IP.345214,IP.345215,IP.345216,IP.345217,IP.345219,IP.345220,IP.345221,IP.345223,IP.345224,IP.345225,IP.345226,IP.345227,IP.345228,IP.345229,IP.345231,IP.345232,IP.345203,IP.345205,IP.345207,IP.345208,IP.345211,IP.345218,IP.345222,IP.345230,IP.345204,IP.345206,IP.345209,IP.345210,IP.345212.
Yale Peabody Museum’s own description