Unit 2, McKenzie Formation, Grasshopper Run Section: Llandovery - Ludlow, West Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Homeospira evax
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Homeospira evax var. marylandica | ||||||||||
Rhynchonellata
- Spiriferida
- Spiriferidae
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"Spirifer" mackenzicus
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Rhynchonellata
- Orthida
- Dalmanellidae
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Parmorthis elegantula
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synonym of Resserella | ||||||||||
Rhynchonellata
- Rhynchonellida
- Camarotoechiidae
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Camarotoechia andrewsi
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Rhynchonellata
- Rhynchonellida
- Uncinulidae
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Uncinulus obtusiplicatus
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptaena "rhomboidalis"
(Wahlenberg 1818)
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recombined as Leptaena (Leptaena) rhomboidalis | ||||||||||
Strophomenata
- Orthotetida
- Pulsiidae
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Schellwienella sp.
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Lingulata
- Lingulida
- Lingulidae
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Lingula sp.
BruguiƩre 1797
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Bivalvia
- Ostreida
- Pterineidae
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Pterinea flintstonensis
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Cephalopoda
- Orthocerida
- Orthoceratidae
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"Orthoceras" sp.
Breynius 1832
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Ostracoda
- Palaeocopida
- Beyrichiidae
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Beyrichia moodeyi
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Trilobita
- Phacopida
- Calymenidae
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Calymene niagarensis
Hall 1843
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Calymene niagarensis var. restricta | ||||||||||
see common names |
Geography
Country: | United States | State/province: | West Virginia | County: | Morgan County |
Coordinates: | 39.6° North, 78.2° West (view map) | ||||
Paleocoordinates: | 29.4° South, 47.2° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Silurian |
Key time interval: | Llandovery - Ludlow |
Age range of interval: | 443.80000 - 423.00000 m.y. ago |
Stratigraphy
Formation: | McKenzie |
Stratigraphic resolution: | group of beds |
Lithology and environment
Primary lithology: | lithified "shale" |
Secondary lithology: | gray,blue lithified "limestone" |
Includes fossils? | Y |
Lithology description: Drab to olive fissile shale, with numerous bands of dark- to blue-gray crystalline limestone and calcareous sandstone. Fossils occur in profusion in upper limestones. | |
Environment: | carbonate indet. |
Taphonomy
Collection methods and comments
Reason for describing collection: | general faunal/floral analysis |
Metadata
Database number: | 41085 | ||
Authorizer: | P. Wagner | Enterer: | K. Koverman |
Modifier: | K. Koverman | Research group: | marine invertebrate |
Created: | 2004-07-06 11:55:12 | Last modified: | 2004-07-06 18:53:30 |
Access level: | the public | Released: | 2004-07-06 11:55:12 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
10968. | 1% | H. P. Woodward. 1941. Silurian System of West Virginia. West Virginia Geological Survey 14:1-326 [P. Wagner/K. Koverman/K. Koverman] |