Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska:
The principal purpose of this study is to determine from geological and biological evidence how a concentration of fossil bones originated. The Verdigre quarry of earliest Pliocene age in the Valentine Formation, northeastern Nebraska forms the basis for the investigation. Some 40 genera of mammals,...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Laramie, Wyo.
Univ. of Wyoming
1969
|
| Schriftenreihe: | Contributions to geology / Special paper
1 |
| Schlagworte: | |
| Zusammenfassung: | The principal purpose of this study is to determine from geological and biological evidence how a concentration of fossil bones originated. The Verdigre quarry of earliest Pliocene age in the Valentine Formation, northeastern Nebraska forms the basis for the investigation. Some 40 genera of mammals, 7 of reptiles, 2 of amphibians, and 6 of fishes are represented in a collection of over 20,000 identifiable specimens recovered from a small excavation in a 4-5 foot-thick lens of extremely poorly sorted, gravelly, silty, clayey sand. The open framework and textural inversion of the fossiliferous stratum indicate very rapid deposition, probably in a single flood. Preferred orientation of long bones shows that the depositional current flowed from the NNW. The site of deposition was an off-channel depression on a broad floodplain which was subaerially exposed (mudcracked)prior to the flood. |
| Beschreibung: | 69 S. graph. Darst. |
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| 245 | 1 | 0 | |a Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska |c Michael R. Voorhies |
| 264 | 1 | |a Laramie, Wyo. |b Univ. of Wyoming |c 1969 | |
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| 490 | 1 | |a Contributions to geology / Special paper |v 1 | |
| 520 | 3 | |a The principal purpose of this study is to determine from geological and biological evidence how a concentration of fossil bones originated. The Verdigre quarry of earliest Pliocene age in the Valentine Formation, northeastern Nebraska forms the basis for the investigation. Some 40 genera of mammals, 7 of reptiles, 2 of amphibians, and 6 of fishes are represented in a collection of over 20,000 identifiable specimens recovered from a small excavation in a 4-5 foot-thick lens of extremely poorly sorted, gravelly, silty, clayey sand. The open framework and textural inversion of the fossiliferous stratum indicate very rapid deposition, probably in a single flood. Preferred orientation of long bones shows that the depositional current flowed from the NNW. The site of deposition was an off-channel depression on a broad floodplain which was subaerially exposed (mudcracked)prior to the flood. | |
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| author | Voorhies, Michael R. |
| author_facet | Voorhies, Michael R. |
| author_role | aut |
| author_sort | Voorhies, Michael R. |
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| dewey-full | 569/.09782/59 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 569 - Fossil Mammalia |
| dewey-raw | 569/.09782/59 |
| dewey-search | 569/.09782/59 |
| dewey-sort | 3569 49782 259 |
| dewey-tens | 560 - Paleontology |
| discipline | Geologie / Paläontologie |
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| id | DE-604.BV009204043 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T17:33:02Z |
| institution | BVB |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-006116149 |
| oclc_num | 515501 |
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| physical | 69 S. graph. Darst. |
| publishDate | 1969 |
| publishDateSearch | 1969 |
| publishDateSort | 1969 |
| publisher | Univ. of Wyoming |
| record_format | marc |
| series2 | Contributions to geology / Special paper |
| spelling | Voorhies, Michael R. Verfasser aut Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska Michael R. Voorhies Laramie, Wyo. Univ. of Wyoming 1969 69 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Contributions to geology / Special paper 1 The principal purpose of this study is to determine from geological and biological evidence how a concentration of fossil bones originated. The Verdigre quarry of earliest Pliocene age in the Valentine Formation, northeastern Nebraska forms the basis for the investigation. Some 40 genera of mammals, 7 of reptiles, 2 of amphibians, and 6 of fishes are represented in a collection of over 20,000 identifiable specimens recovered from a small excavation in a 4-5 foot-thick lens of extremely poorly sorted, gravelly, silty, clayey sand. The open framework and textural inversion of the fossiliferous stratum indicate very rapid deposition, probably in a single flood. Preferred orientation of long bones shows that the depositional current flowed from the NNW. The site of deposition was an off-channel depression on a broad floodplain which was subaerially exposed (mudcracked)prior to the flood. Paléontologie - Nebraska - Knox Paléontologie - Pliocène Paléoécologie - Nebraska - Knox Vertébrés fossiles - Nebraska - Knox Paläontologie Paleoecology Nebraska Knox County Paleontology Pliocene Paleontology Nebraska Knox County Vertebrates, Fossil Nebraska Knox County Wirbeltiere (DE-588)4066376-0 gnd rswk-swf Pliozän-Pleistozän-Grenze (DE-588)4392081-0 gnd rswk-swf Wirbeltiere (DE-588)4066376-0 s Pliozän-Pleistozän-Grenze (DE-588)4392081-0 s DE-604 Special paper Contributions to geology 1 (DE-604)BV000904292 1 |
| spellingShingle | Voorhies, Michael R. Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska Paléontologie - Nebraska - Knox Paléontologie - Pliocène Paléoécologie - Nebraska - Knox Vertébrés fossiles - Nebraska - Knox Paläontologie Paleoecology Nebraska Knox County Paleontology Pliocene Paleontology Nebraska Knox County Vertebrates, Fossil Nebraska Knox County Wirbeltiere (DE-588)4066376-0 gnd Pliozän-Pleistozän-Grenze (DE-588)4392081-0 gnd |
| subject_GND | (DE-588)4066376-0 (DE-588)4392081-0 |
| title | Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska |
| title_auth | Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska |
| title_exact_search | Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska |
| title_full | Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska Michael R. Voorhies |
| title_fullStr | Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska Michael R. Voorhies |
| title_full_unstemmed | Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska Michael R. Voorhies |
| title_short | Taphonomy and population dynamics of an early Pliocene vertebrate fauna, Knox County, Nebraska |
| title_sort | taphonomy and population dynamics of an early pliocene vertebrate fauna knox county nebraska |
| topic | Paléontologie - Nebraska - Knox Paléontologie - Pliocène Paléoécologie - Nebraska - Knox Vertébrés fossiles - Nebraska - Knox Paläontologie Paleoecology Nebraska Knox County Paleontology Pliocene Paleontology Nebraska Knox County Vertebrates, Fossil Nebraska Knox County Wirbeltiere (DE-588)4066376-0 gnd Pliozän-Pleistozän-Grenze (DE-588)4392081-0 gnd |
| topic_facet | Paléontologie - Nebraska - Knox Paléontologie - Pliocène Paléoécologie - Nebraska - Knox Vertébrés fossiles - Nebraska - Knox Paläontologie Paleoecology Nebraska Knox County Paleontology Pliocene Paleontology Nebraska Knox County Vertebrates, Fossil Nebraska Knox County Wirbeltiere Pliozän-Pleistozän-Grenze |
| volume_link | (DE-604)BV000904292 |
| work_keys_str_mv | AT voorhiesmichaelr taphonomyandpopulationdynamicsofanearlypliocenevertebratefaunaknoxcountynebraska |