Omulev Mnt. area,Tirekhtyakh Fm, Mirny Creek section, Unit P-65, Sample SIB79-37: Ashgill, Russian Federation
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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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 | |||||||
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Belodina confluens
Sweet 1979
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Conodonta
- Protopanderodontida
- Drepanoistodontidae
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Drepanoistodus suberectus
(Branson and Mehl 1933)
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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: | 142460 | ||
| Authorizer: | W. Kiessling | Enterer: | M. Krause |
| Modifier: | M. Krause | Research group: | marine invertebrate |
| Created: | 2013-04-11 23:44:06 | Last modified: | 2024-03-31 19:20:45 |
| Access level: | authorizer only | Released: | 2013-07-11 23:44:06 |
| 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] |