USGS 5073-CO; Old Crow Distillery, Frankfort East B section: Chatfieldian, Kentucky
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Rostricellula minuta
Cooper 1956
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Howe 1979 | |||||||||
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Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanella sulcata
Cooper 1956
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Walker 1982 | |||||||||
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Cephalopoda
- Orthocerida
- Proteoceratidae
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Isorthoceras albersi
(Miller and Faber 1894)
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| USNM 468700 (suite of specimens, no exact number given) | ||||||||||
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Gorbyoceras cf. tetreauense
Wilson 1961
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1 specimen | |||||||||
| USNM 468707 | ||||||||||
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Tergomya
- Cyrtonellida
- Cyrtolitidae
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Cyrtolites (Cyrtolites) retrorsus
(Ulrich and Scofield 1897)
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Wahlman 1992 | |||||||||
| original and current combination Cyrtolites retrorsus | ||||||||||
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Gastropoda
- Bellerophontida
- Sinuitidae
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Sinuites obesa
(Ulrich and Scofield 1897)
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Wahlman 1992 | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Kentucky | County: | Franklin |
| Coordinates: | 38.1° North, 84.9° West (view map) | ||||
| Paleocoordinates: | 27.1° South, 63.2° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| Key time interval: | Chatfieldian | Conodont zone: | |
| Age range of interval: | 453.70000 - 451.10000 m.y. ago |
Stratigraphy
| Formation: | Lexington Limestone | Member: | Logana Limestone | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "Upper part of the Logana Member, Lexington Limestone [...] Just below 4-ft-thick dalmanellid coquina."; Section name: Frankfort East B; Section no. 87; "Just below 4-ft-thick dalmanellid coquina" | |||||
Lithology and environment
| Primary lithology: | tabular argillaceous "limestone" | ||
| Secondary lithology: | "shale" | ||
| Includes fossils? | Y | ||
| Lithology description: " [...] interbedded, thin, planar, argillaceous limestone and shale [...] up to 50 ft thick [...] containing a more sparse fauna of dalmanellid brachiopods, bryozoans, pelecypods, univalved mollusks, and nautiloids." | |||
| Environment: | open shallow subtidal | Tectonic setting: | foreland basin |
| Glacial or sequence phase: | highstand systems tract | ||
| Geology comments: "Cressman (1973) indicated that the Logana Member represented the height of the initial marine transgression, deposited under quiet-water conditions at water depths below wave base";
sequence stratigraphy is according to McLaughlin et al. (2004, Palaeogeogr. Palaeoclimat. Palaeoecol., 210) | |||
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
| Temporal resolution: | time-averaged |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection excludes: | some macrofossils,difficult macrofossils |
| Collection methods: | bulk,acetic,survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: " [...] specimens were obtained from bulk rock collections (36,000 pounds (lbs) of limestone) made by USGS field parties in the 1960's and 1970's." This statement not only applies to the Frankfort East B locality. For further details on collection methods see p. P22 in the primary reference | |
| Taxonomic list comments:see comments on lithology | |
Metadata
| Database number: | 87820 | ||
| Authorizer: | B. Kröger, P. Wagner | Enterer: | T. Liebrecht, P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2009-03-25 11:39:02 | Last modified: | 2018-09-07 10:29:15 |
| Access level: | the public | Released: | 2009-03-25 11:39:02 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 24575. | R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126 [S. Holland/S. Holland] |
Secondary references:
| 53293 | H. J. Howe. 1979. Middle and Late Ordovician plectambonitacean, rhynchonellacean, syntrophiacean, trimerellacean, and atrypacean brachiopods: descriptions and illustrations of 14 species of Ordovician brachiopods. United States Geological Survey Professional Paper 1066(C):C1-C17 [P. Wagner/P. Wagner] | |
| 21951 | R. L. Parsley. 1981. Echinoderms from Middle and Upper Ordovician rocks of Kentucky. United States Geological Survey Professional Paper 1066-K:1-9 [G. Webster/G. Webster] | |
| 10963 | G.P. Wahlman. 1992. Middle and Upper Ordovician symmetrical univalved mollusks (Monoplacophora and Bellerophontina) of the Cincinnati Arch region. United States Geological Survey Professional Paper 1066(O):1-123 [P. Wagner/P. Wagner/E. Ito] | |
| 24592 | L. G. Walker. 1982. The brachiopod genera Hebertella, Dalmanella, and Heterorthina from the Ordovician of Kentucky. United States Geological Survey Professional Paper 1066M:1-17 [S. Holland/S. Holland/P. Wagner] |