Elasmosauridae
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
Geological context: Cretaceous, Niobrara Fm, Fort Hays Ls Mbr. Collection locality: Jewell County, Kansas, USA. Collected by Benjamin F. Mudge, 1874-05-11. 27 vertebrae from throughout the column (some complete, most isolated centra or partial centra), associated spine and other vertebral fragments, numerous rib fragments, R scapula minus dorsal process, posterior flange of coracoid, L & R ilia, numerous small additional portions of the pectoral and pelvic girdles, various limb elements including the R femur, parts of other propodails, epipodials, mesopodials, metapodials and phalanges; VP number 1640; lot count 1; accn=YPM.00581; associatedwith=VP.059394.
Yale Peabody Museum’s own description