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undet. Ostreacea
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
About this work
Geological context: Late Cretaceous, Fox Hills Fm, Timber Lake Mbr. Collection locality: conc., 3 inches above layer C, bluffs [probably buttes] 3 mi E of Missouri River, and about 9.2 mi NW of Pollock, SD, Emmons County, North Dakota, USA. Collected by Ian G. Speden, 1963. IP number 393876; lot count 1; taphonomy=concretion; accn=IPA.07048; associatedwith=on same slab: IP.798819.
Yale Peabody Museum’s own descriptionSubjects
Credit lineundet. Ostreacea (YPM IP 393876). Photograph by D. Stevenson. Yale Peabody Museum, Invertebrate Paleontology. CC0.
