Trace fossils in siltstone (Hinton Formation or Bluefield Formation, Upper Mississippian; Oakvale School outcrop - Rt. 112 roadcut, Oakvale, West Virginia, USA) 3 : 無料・フリー素材/写真
Trace fossils in siltstone (Hinton Formation or Bluefield Formation, Upper Mississippian; Oakvale School outcrop - Rt. 112 roadcut, Oakvale, West Virginia, USA) 3 / 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 | Trace fossils in siltstone from the Mississippian of West Virginia, USA.Trace fossils are any indirect evidence of ancient life. They refer to features in rocks that do not represent parts of the body of a once-living organism. Traces include footprints, tracks, trails, burrows, borings, and bitemarks. Body fossils provide information about the morphology of ancient organisms, while trace fossils provide information about the behavior of ancient life forms. Interpreting trace fossils and determination of the identity of a trace maker can be straightforward (for example, a dinosaur footprint represents walking behavior) or not. Sediments that have trace fossils are said to be bioturbated. Burrowed textures in sedimentary rocks are referred to as bioturbation. Trace fossils have scientific names assigned to them, in the same style & manner as living organisms or body fossils.Stratigraphy: float from the Hinton Formation or Bluefield Formation, Upper Mississippian Locality: Oakvale School Outcrop - roadcut through Divide Ridge on the western side of Rt. 112, across from Oakvale School, immediately south of Rt. 460, far-southeastern Mercer County, far-southern West Virginia, USA (37º 20' 22.84" North latitude, 80º 57' 20.49" West longitude) |
撮影日 | 2017-05-26 14:27:48 |
撮影者 | James St. John |
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