Omulev Mnt. area,Tirekhtyakh Fm, Mirny Creek section, Unit P-65, Sample SIB79-38: Ashgill, Russian Federation
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Amorphognathus ordovicius
Branson and Mehl 1933
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Conodonta
- Panderodontida
- Panderodontidae
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Panderodus unicostatus
(Branson and Mehl 1933)
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original and current combination Paltodus unicostatus | |||||||
Belodina confluens
Sweet 1979
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Conodonta
- Protopanderodontida
- Drepanoistodontidae
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? Paroistodus mutatus
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Conodonta
- Protopanderodontida
- Protopanderodontidae
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Protopanderodus insculptus
(Branson and Mehl 1933)
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see common names |
Geography
Country: | Russian Federation |
Coordinates: | 64.0° North, 147.2° East (view map) |
Paleocoordinates: | 13.6° North, 9.1° West |
Basis of coordinate: | estimated from map |
Geographic resolution: | outcrop |
Time
Period: | Ordovician | Epoch: | Late/Upper Ordovician |
10 m.y. bin: | Ordovician 5 | ||
Key time interval: | Ashgill | Graptolite zone: | Appendispinograptus supernus |
Age range of interval: | 449.60000 - 443.80000 m.y. ago |
Stratigraphy
Formation: | Tirekhtyakh | ||||
Local section: | Mirny Creek | Local bed: | Tcherskidium unicum | ||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Late Ashgillian |
Lithology and environment
Primary lithology: | "limestone" |
Secondary lithology: | calcareous "shale" |
Lithology description: bioclastic limestone, with large algal and coral bioherms and thin interbeds of silty carbonaceou shale. The formation includes distinctive brachiopods | |
Environment: | reef, buildup or bioherm |
Geology comments: The Tirekhtyakh Formation is from 255 to 320 m thick locally |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 142462 | ||
Authorizer: | W. Kiessling | Enterer: | M. Krause |
Modifier: | M. Krause | Research group: | marine invertebrate |
Created: | 2013-04-11 23:46:20 | Last modified: | 2024-03-31 19:20:45 |
Access level: | authorizer only | Released: | 2013-07-11 23:46:20 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
46244. | S. Zhang and C. R. Barnes. 2007. Late Ordovician to Early Silurian Conodont faunas from the Kolyma Terrane, Omulev Mountains, Northeast Russia, and their paleobiogeographic affinity. Journal of Paleontology 81(3):490-512 [W. Kiessling/M. Krause/M. Krause] |