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No.10. Leptauchenia under side of skull Transition beds bet, Rosebud + Leptauch. Matthew 6/26 Wounded Knee Cr'k, 2 m. above Manderson 12996 No.11. Leptauchenia. Many palates + jaws together Upper Leptauchenia beds Matthew 6/26 Wounded Knee Cr'k 2 m. above Manderson. The beds on Wounded Knee above Manderson do not show any break in sedimentation but are apparently continuous, changing gradually from a sandy clay full of small round concretions (Leptauchenia beds) to a soft clayey sand full of irregular concretions in some layers, and in upper part harder limy layers. In Leptauchenia beds occurred numerous Leptauchenia and an Oreodont about size of Eporeodon, + fragments of Leptomeryx, horse + carnivore + Steneofiber. The base of Rosebud beds was determined by fauna only, as no break occurs, but Leptauchenia fauna disappears + Ticholepteos is found. Higher up occurred the Merycochoerus skulls which are probably (some of them at least) Promerycochoeus. Upper levels of Rosebud beds are very barren. Cosonyx occurs, +c. Contact between Rosebud + Loup Fork not Well shown on this creek. No.12. Merychyus Tibia + articulated hind foot Upper Rosebud beds Matthew 6/28 E. of Porcupine Butte, "Bird head" of Porcupine Cr'k 12973 No.13. Heteromid ?new. Jaw + parts skull Uppermost Rosebud beds Thomson 6/28 Porcupine Butte. 12892 No.14 Small carnivore (new) Upper + lower jaw Upper Rosebud beds Matthew 6/29 Porcupine Butte (same as #12)12865 No.15. Small carnivore, rodent, Merychyus +c jaws Upper Rosebud beds Matthew 6/29. Porcupine Butte (same as #12)12878