Arnheim: Maysvillian, Tennessee
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Demospongiae
- Streptosclerophorida
- Hindiidae
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Hindia sphaeroidalis
Duncan 1879
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Demospongiae
- Sigmatosclerophorida
- Dystactospongiidae
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Dystactospongia sp.
Miller 1882
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Heterospongia subramosa
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Anthozoa
- Stauriida
- Disphyllidae
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Columnaria alveolata
Goldfuss 1826
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Anthozoa
- Stauriida
- Streptelasmatidae
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Streptelasma rusticum
(Billings 1858)
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unclassified
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Protarea richmondensis
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Gastropoda
- Murchisoniina
- Lophospiridae
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Lophospira bowdeni
(Safford 1869)
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Gastropoda
- Euomphalina
- Platyceratidae
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Cyclonema fluctuatum
James 1871
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Rhynchonellata
- Orthida
- Glyptorthidae
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Hebertella insculpta
(Hall 1847)
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Rhynchonellata
- Orthida
- Plaesiomyidae
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Dinorthis subquadrata
(Hall 1847)
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Dinorthis carleyi
(Hall 1860)
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Rhynchonellata
- Orthida
- Plectorthidae
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Hebertella sinuata
(Hall 1847)
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Rhynchonellata
- Orthida
- Platystrophiidae
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Platystrophia cypha
(James 1874)
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| P.cypha, P.c.conradi, P.c.arcta, P.c.tumida | ||||||||||
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Platystrophia ponderosa
Foerste 1909
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| Platystrophia ponderosa auburnensis | ||||||||||
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Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanella jugosa
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Rhynchonellata
- Rhynchonellida
- Rhynchotrematidae
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Rhynchotrema dentatum
(Hall 1847)
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| Rhynchotrema dentatum arnheimensis | ||||||||||
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Rhynchotrema capax
(Conrad 1842)
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Strophomenata
- Strophomenida
- Plectambonitidae
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Plectambonites clarksvillensis
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina alternata
(Conrad 1838)
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Leptaena richmondensis
Foerste 1909
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| Leptaena richmondensis precursor | ||||||||||
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena concordensis
Foerste 1909
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Strophomena planumbona
(Hall 1847)
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Strophomena subtenta
(James 1874)
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Stenolaemata
- Trepostomida
- Amplexoporidae
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Rhombotrypa quadrata
(Rominger 1866)
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Tennessee |
| Coordinates: | 35.5° North, 86.5° West (view map) | ||
| Paleocoordinates: | 23.7° South, 118.4° West (Wright 2013) | ||
| Geographic resolution: | basin |
Time
| Period: | Ordovician | Epoch: | Late Ordovician |
| Stage: | Katian | 10 m.y. bin: | Ordovician 5 | *Epoch: | Middle Ashgill | *Local age/stage: | Early/Lower Richmondian |
| Key time interval: | Maysvillian | ||
| Age range of interval: | 450.4 - 449.8 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Arnheim | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Maysvillian; Collection may include some of overlying Sequatchie Tongue | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal lithified packstone | ||
| Secondary lithology: | mudstone | ||
| Includes fossils? | Y | ||
| Lithology description: primarily thin to very thin bedded skeletal packstones, interbedded with very thin gray mudstones | |||
| Environment: | carbonate indet. | Tectonic setting: | foreland basin |
| Geology comments: Geological information from field notes of S.M. Holland and M.E. Patzkowsky | |||
Taphonomy
| Modes of preservation: | body,original calcite |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils |
| Reason for describing collection: | biostratigraphic analysis |
| Taxonomic list comments:Wilson reports faunal list of Bassler (1932), which may include some fauna from the overlying Sequatchie | |
Metadata
| Database number: | 5390 | ||
| Authorizer: | S. Holland | Enterer: | S. Holland |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 1999-09-29 11:35:20 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 1999-09-29 11:35:20 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 317. | C. W. Wilson. 1949. Pre-Chattanooga stratigraphy in Central Tennessee. Tennessee Division of Geology Bulletin 56:1-415 [S. Holland/S. Holland] |