Catawba Collection 9: Mohawkian, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea
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Crinoidea (informal group 1) indet.
Miller 1821
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Plants 1977 | 5 individuals | ||||||||
Bryozoa
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Bryozoa indet.
(Ehrenberg 1831)
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Plants 1977 | 2 individuals | ||||||||
"encrusting" | ||||||||||
Stenolaemata
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Stenolaemata indet.
Borg 1926
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Plants 1977 | 2 individuals | ||||||||
Craniata
- Craniopsida
- Craniopsidae
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Craniops sp.
Hall 1859
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Plants 1977 | 3 individuals | ||||||||
Lingulata
- Lingulida
- Lingulidae
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Lingula sp.
BruguiƩre 1797
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Plants 1977 | 1 individual | ||||||||
Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina alternata
(Conrad 1838)
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Plants 1977 | 22 individuals | ||||||||
Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanella bassleri
Foerste 1909
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Plants 1977 | 103 individuals | ||||||||
Bivalvia
- Grammysiidae
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Cuneamya sp.
Hall and Whitfield 1875
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Plants 1977 | 1 individual | ||||||||
Bivalvia
- Modiomorphida
- Modiomorphidae
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Modiolopsis modiolaris
(Conrad 1838)
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Plants 1977 | 5 individuals | ||||||||
see common names |
Geography
Country: | United States | State/province: | Virginia |
Coordinates: | 37.4° North, 80.9° West (view map) | ||
Paleocoordinates: | 29.7° South, 61.1° West | ||
Basis of coordinate: | unpublished field data | ||
Geographic resolution: | hand sample |
Time
Period: | Ordovician | Epoch: | Late/Upper Ordovician |
10 m.y. bin: | Ordovician 4-5 | ||
Key time interval: | Mohawkian | ||
Age range of interval: | 457.00000 - 451.10000 m.y. ago |
Stratigraphy
Formation: | Martinsburg | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Holland and Patzkowsky, 1996 have the "Martinsburg" here as the "Reedsville"
Based on Kreisa (1980, VA Tech Ph.D. dissertation), probably Trenton equivalent |
Lithology and environment
Primary lithology: | gray lithified silty,calcareous "shale" |
Secondary lithology: | siltstone |
Lithology description: Poorly exposed; calcareous, light olive gray silty shale, siltstone, and some sandstone, thin to very thin bedded | |
Environment: | deep subtidal shelf |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Reason for describing collection: | paleoecologic analysis |
Taxonomic list comments:Dalmanella community |
Metadata
Database number: | 85581 | ||
Authorizer: | K. Layou | Enterer: | K. Layou |
Modifier: | K. Layou | Research group: | marine invertebrate |
Created: | 2009-01-12 11:10:05 | Last modified: | 2009-01-14 15:01:11 |
Access level: | the public | Released: | 2009-01-12 11:10:05 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
28962. | K. M. Layou. 2009. Ecological restructuring after extinction: the Late Ordovician (Mohawkian) of the eastern United States. Palaios 24:118-128 [K. Layou/K. Layou] |
Secondary references:
25782 | H. F. Plants. 1977. Paleoecology of the Martinsburg Formation at Catawba Mountain, Virginia. Virginia Polytechnic Institute, Blacksburg, VA [P. Novack-Gottshall/P. Hearn/P. Novack-Gottshall] |