Ridley - Wilson, 1949: Blackriveran, Tennessee
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Rhynchocamera varians
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Ostracoda
- Leperditicopida
- Leperditiidae
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Leperditia fabulites
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Ostracoda
- Beyrichicopida
- Drepanellidae
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Drepanella ampla
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Ostracoda
- Hollinocopida
- Eurychilinidae
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Eurychilina aequalis
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Ostracoda
- Palaeocopida
- Hollinidae
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Ctenobolbina subcrassa
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Trilobita
- Phacopida
- Pterygometopidae
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Pterygometopus troosti
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Cephalopoda
- Actinocerida
- Gonioceratidae
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Gonioceras anceps
Hall 1847
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Gastropoda
- Euomphalina
- Macluritidae
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Maclurites magnus
(Le Sueur 1818)
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Gastropoda
- Euomphalina
- Holopeidae
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Eccyliomphalus contiguus
Ulrich and Scofield 1897
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| recombined as Pachystrophia contiguus | ||||||||||
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Gastropoda
- Bellerophontida
- Plectonotidae
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Tetranota bidorsata
(Hall 1847)
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Gastropoda
- Murchisoniina
- Lophospiridae
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Lophospira bicincta
(Hall 1847)
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= Eunema centralis
Ulrich and Scofield 1897
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Wagner 2023 | |||||||||
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Gastropoda
- Murchisoniina
- Gosseletinidae
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Liospira convexa
(Ulrich and Scofield 1897)
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| recombined as Cataschisma convexum | ||||||||||
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Gastropoda
- Murchisoniina
- Eotomariidae
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Liospira americana
(Billings 1860)
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Liospira progne
(Billings 1860)
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Rhynchonellata
- Orthida
- Plaesiomyidae
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Valcourea deflecta
(Conrad 1843)
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= Chaulistomella ridleyensis
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Cooper 1956 | |||||||||
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Rhynchonellata
- Orthida
- Glyptorthidae
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Glyptorthis bellarugosa
(Conrad 1843)
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Rhynchonellata
- Orthida
- Hesperorthidae
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Hesperorthis tricenaria
(Conrad 1843)
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= Hesperorthis australis
Cooper 1956
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Cooper 1956 | |||||||||
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Rhynchonellata
- Orthida
- Draboviidae
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Pianodema subaequata
(Conrad 1843)
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| recombined as Pionodema subaequata | ||||||||||
| Cooper (1956): this is probably a misidentification | ||||||||||
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Pianodema stonensis
(Safford 1869)
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| recombined as Fascifera stonensis | ||||||||||
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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira saffordi
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Rhynchonellata
- Rhynchonellida
- Ancistrorhynchidae
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Protorhyncha ridleyana
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= Ancistrorhyncha costata
Ulrich and Cooper 1942
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Cooper 1956 | |||||||||
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Strophomenata
- Strophomenida
- Furcitellidae
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Rafinesquina incrassata
(Hall 1847)
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| recombined as Dactylogonia incrassata | ||||||||||
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena incurvata
(Shephard 1838)
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Strophomena filitexta
(Hall 1847)
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Stenolaemata
- Cryptostomata
- Escharoporidae
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Escharopora subrecta
Ulrich 1886
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Stenolaemata
- Cryptostomata
- Ptilodictyidae
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Stictoporella cribrilina
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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Pachydictya cf. foliata
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Rhinidictya nashvillensis
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Rhinidictya salemensis
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Rhinidictya tabulata
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Stenolaemata
- Cryptostomata
- Arthrostylidae
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Helopora spiniformis
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Stenolaemata
- Cystoporata
- Constellariidae
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Constellaria lamellosa
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Stenolaemata
- Cystoporata
- Ceramoporidae
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Anolotichia explanata
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Stenolaemata
- Trepostomida
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Nicholsonella pulchra
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Nicholsonella frondifera
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Stenolaemata
- Trepostomida
- Monticuliporidae
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Orbignyella sublamellosa
Ulrich and Bassler 1904
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Monticulipora discula
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Stenolaemata
- Trepostomata
- Trematoporidae
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Stromatotrypa lamellata
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| synonym of Batostoma | ||||||||||
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Stenolaemata
- Trepostomata
- Heterotrypidae
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Dekayella ridleyana
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Stenolaemata
- Trepostomata
- Dittoporidae
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Hemiphragma irrasum
(Ulrich 1893)
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Stenolaemata
- Trepostomata
- Halloporidae
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Hallopora spissata
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Dianulites cf. petropolitanus
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Stenolaemata
- Phylloporinidae
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Chasmatopora sublaxa
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Stromatoporoidea
- Labechiida
- Stromatoceriidae
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Stromatocerium cf. rugosum
Hall 1847
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Demospongiae
- Anthaspidellidae
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Zittelella varians
Billings 1861
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unclassified
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Tetradium syringoporoides
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Tennessee |
| Coordinates: | 35.5° North, 86.5° West (view map) | ||
| Paleocoordinates: | 28.1° South, 66.4° West | ||
| Geographic resolution: | basin |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| *Period: | Middle Ordovician | *Local age/stage: | Middle Blackriveran |
| Key time interval: | Blackriveran | Conodont zone: | Baltoniodus gerdae |
| Age range of interval: | 457.00000 - 449.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Ridley Limestone |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | bioturbation,peloidal,shelly/skeletal lithified packstone | ||
| Secondary lithology: | wackestone | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Lithology description: medium to thick bedded skeletal to peloidal wackestones to packstones. highly bioturbated. includes some beds of skeletal (echinodermal) grainstones. | |||
| Environment: | shallow subtidal indet. | Tectonic setting: | foreland basin |
| Geology comments: Geological information from field work of S.M. Holland and M.E. Patzkowsky | |||
Taphonomy
| Modes of preservation: | body,original calcite,replaced with calcite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some microfossils |
| Reason for describing collection: | biostratigraphic analysis |
| Taxonomic list comments:Wilson made a composite of faunal lists from Coryell (1921) and Bassler (1939) | |
Metadata
| Database number: | 5329 | ||
| Authorizer: | S. Holland, P. Wagner | Enterer: | S. Holland, P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 1999-09-23 12:08:39 | Last modified: | 2017-01-21 22:36:20 |
| Access level: | the public | Released: | 1999-09-23 12:08:39 |
| Creative Commons license: | CC BY |
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] |
Secondary references:
| 44678 | G. A. Cooper. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections 127:1-1245 [P. Wagner/P. Wagner] | |
| 9042 | P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner] |