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Matrix.
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
About this work
Geological context: Late Cretaceous, Greenhorn Ls. Collection locality: ferruginous concs. in upper part of Greenhorn, S end of Orman Dam, 2 mi N of US Rt 12, & 9 mi ENE of Belle Fourche, Butte County, South Dakota, USA. Collected by Karl M. Waage, Neil H. Landman, 1977. IP number 850138; lot count 1; accn=IPA.07111.
Yale Peabody Museum’s own descriptionCredit lineMatrix. (YPM IP 850138). Photograph by Jim Barkley. Yale Peabody Museum, Invertebrate Paleontology. CC0.