Valnev Horizon (upper part), platform facies, SW Novaya Zemlya: Pragian, Russian Federation
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Pribilina aff. inaequicostata
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| Pribylina is valid name of an ostracode; this is listed under trilobites | ||||||||||
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Conodonta
- Ozarkodinida
- Polygnathidae
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Polygnathus dehiscens
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Pandorinellina exigua
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Conodonta
- Prioniodontida
- Icriodontidae
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Icriodus sigmoidalis
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Trilobita
- Proetida
- Proetidae
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Schizoproetina borealis
(Maksimova 1960)
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Wolayella polaris
Maksimova 1977
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Trilobita
- Proetida
- Tropidocoryphidae
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Denemarkia cf. frontalis
(Hawle and Corda 1847)
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Tentaculita
- Nowakiida
- Nowakiidae
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Nowakia acuaria
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Stenolaemata
- Cryptostomata
- Fenestellidae
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Hemitrypa aff. devonica
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Fenestella acuticarinata
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Fenestella novozemelica
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Fenestella colporataformis
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Stenolaemata
- Cryptostomata
- Semicosciniidae
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Semicoscinium tuberculatus
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Trigonirhynchia ex gr. ventricosa
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Nymphorhynchia pseudolivonica
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Nymphorhynchia opima
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella ex gr. yacutica
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Bivalvia
- Modiomorphida
- Modiomorphidae
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Modiomorpha anulifera
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Bivalvia
- Nuculida
- Nuculidae
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Nuculoidea niotica
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Anthozoa
- Favositida
- Alveolitidae
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Alveolites distinctus
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Anthozoa
- Favositida
- Favositidae
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Squameofavosites arcticus
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Favosites ex gr. goldfussi
Lecompte 1939
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Anthozoa
- Stauriida
- Ptenophyllidae
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Lyrielasma columna
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Anthozoa
- Stauriida
- Lykophyllidae
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Camurophyllum reticulatum
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Anthozoa
- Cystiphyllida
- Cystiphyllidae
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Lythophyllum originale
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Patridophyllum obliterum
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| synonym of Lythophyllum | ||||||||||
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Zonophyllum polaricum
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| see common names | ||||||||||
Geography
| Country: | Russian Federation | State/province: | Arkhangel'skaya Oblast' |
| Coordinates: | 72.0° North, 52.0° East (view map) | ||
| Paleocoordinates: | 3.1° North, 0.4° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | basin |
Time
| Period: | Devonian | Epoch: | Early/Lower Devonian |
| Stage: | Pragian | 10 m.y. bin: | Devonian 1 |
| Key time interval: | Pragian | Conodont zone: | Pandorinellina exigua exigua |
| Age range of interval: | 410.80000 - 407.60000 m.y. ago |
Stratigraphy
| Formation: | Valnev | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Upper part of Valnev Horizon corresponds to the Nymphorhynchia pseudolivonia Lona. "A Lona is a regional taxonomic unit, subordinate to a horizon and corresponding to a minor phase in the development of the basin and in the evolution of the organic world." | |||||
Lithology and environment
| Primary lithology: | dolomitic "limestone" |
| Secondary lithology: | "shale" |
| Lithology description: Lithologies read off of stratigraphic chart (fig. 2): dolomitized limestone; shale interbeds; calcarenite; layered limestones, bioherms, and reefs | |
| Environment: | marine indet. |
| Geology comments: Shallow-water carbonate platform. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils,microfossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Faunal list from Fig. 3 | |
Metadata
| Database number: | 40701 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2004-06-28 08:23:37 | Last modified: | 2023-02-25 13:32:33 |
| Access level: | the public | Released: | 2004-06-28 08:23:37 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10959. | S. V. Cherkesova. 1988. Lower and Middle Devonian marine deposits of the Soviet arctic and the correlation with arctic Canada. In N. J. McMillan, A. F. Embry, and D. J. Glass (eds.), Devonian of the World, Volume III 669-679 [M. Foote/M. Foote/P. Wagner] |