Valentine Formation
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The Valentine Formation is a geologic unit formation or member within the Ogallala unit in northcentral Nebraska near the South Dakota border. It preserves fossils dating to the Miocene epoch of the N
Looser sand of the Valentine Formation sloping back from its contact with the Rosebud Formation on the Niobrara River at the Valentine, Nebraska, type location. Water from the Ogallala Aquifer seeps from the base of the Valentine down the face of the Rosebud.
Valentine opaline sandstone with white Niobrara pebbles, Rush County, Kansas
Valentine opaline sandstone, Hays, Kansas
Valentine-contact opalized Niobrara, Frontier Park, Hays, Kansas
Ash Hollow Formation
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The Ash Hollow Formation of the Ogallala Group is a geological formation found in Nebraska and South Dakota. It preserves fossils dating back to the Neogene period. It was named after Ash Hollow, Nebr
Valentine Formation
…elements. A borophagine dog. C. webbi Brown & Cherry counties, Nebraska. Burge Member. Many skull & jaw elements. A borophagine dog also found in the Ash Hollow, Tesuque & Chamita formations. Cynarctus C. saxatilis Cherry, Brown, Knox & Webster counties, Nebraska. Crookston Bridge, Cornell Dam & Devil's Gulch…
Ash Hollow Formation in Nebraska
Aelurodon taxoides
Epicyon haydeni 3
Epicyon saevus mandible