Pseudhipparion gratum (small three-toed horse foot) (Ash Hollow Formation, Miocene; Ashfall Fossil Beds, Nebraska, USA) 2 : 無料・フリー素材/写真
Pseudhipparion gratum (small three-toed horse foot) (Ash Hollow Formation, Miocene; Ashfall Fossil Beds, Nebraska, USA) 2 / James St. John
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Pseudhipparion gratum (Leidy, 1869) - diseased left foot bones from a small three-toed horse from the Miocene of Nebraska, USA.This horse fossil was excavated from a volcanic ash deposit at Nebraska's Ashfall Fossil Beds. The ash was derived from the Bruneau-Jarbidge Volcanic Field in southwestern Idaho's Snake River Plain. The wind-blown ash buried a vertebrate-rich biota at what was originally a Miocene waterhole.------------------------------------------------From on-site signage:Some Ashfall skeletons bear evidence of disease or injury from a time long before the ash fell. This badly diseased left hind foot, for example, is from a small 3-toed stallion; . . . his right foot is normal. The diseased foot may have suffered a severe kick or bite which later became infected.------------------------------------------------Classification: Animalia, Chordata, Vertebrata, Mammalia, Perissodactyla, EquidaeStratigraphy: Cap Rock Member, Ash Hollow Formation, Ogallala Group, Miocene, 11.83 MaLocality: Ashfall Fossil Beds State Historical Park, northeastern Nebraska, USA------------------------------------------------Info. at:en.wikipedia.org/wiki/Ashfall_Fossil_Beds |
| 撮影日 | 2011-08-05 12:49:07 |
| 撮影者 | James St. John |
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