Tsagaan Del Unit 2. Right bank of Buriduin-Gol River, 4 km NE of Bor-kuduk well: Katian, Mongolia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
unclassified
|
|||||||
|
Trabecovallum altaicum
|
Rozman and Minzhin 1980 | ||||||
|
Bajanolites buriduiense
|
Rozman and Minzhin 1980 | ||||||
|
Brachiopoda indet.
Cuvier 1805
|
|||||||
|
Strophomenata
- Orthotetida
- Triplesiidae
|
|||||||
|
Epacroplecia acuminata
|
Rozman and Minzhin 1980 | ||||||
| synonym of Craigella | |||||||
|
Strophomenata
- Strophomenida
- Strophonellidae
|
|||||||
|
Eostrophonella antiqua
Rozman 1977
|
Rozman and Minzhin 1980 | ||||||
|
Strophomenata
- Strophomenida
- Furcitellidae
|
|||||||
|
Bajanhongorella bajanhongorica
|
Rozman and Minzhin 1980 | ||||||
|
Strophomenata
- Strophomenida
- Rafinesquinidae
|
|||||||
|
Leptaena praequalis
Rozman 1977
|
Rozman and Minzhin 1980 | ||||||
|
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
|
|||||||
|
Rostricellula informal sp. nov.
Ulrich and Cooper 1942
|
Rozman and Minzhin 1980 | ||||||
|
Rostricellula sparsa
|
Rozman and Minzhin 1980 | ||||||
|
Rhynchonellata
- Orthida
- Hesperorthidae
|
|||||||
|
Hesperorthis acuticostata
|
Rozman and Minzhin 1980 | ||||||
|
Hesperorthis laticostata
(Rozman 1977)
|
Rozman and Minzhin 1980 | ||||||
| misspelling Hesperorthis latecostata | |||||||
|
Anthozoa
- Stauriida
- Stauriidae
|
|||||||
|
Palaeophyllum thomi
|
|||||||
|
Anthozoa
- Stauriida
- Streptelasmatidae
|
|||||||
|
Grewingkia venusta
|
|||||||
|
Grewingkia contexta
Neuman 1969
|
|||||||
|
Anthozoa
|
|||||||
|
Tabulata indet.
Milne-Edwards and Haime 1850
|
|||||||
|
Anthozoa
- Lichenariida
- Lyoporidae
|
|||||||
|
Transitolites transitus
|
Rozman and Minzhin 1980 | ||||||
|
Anthozoa
- Heliolitida
|
|||||||
|
Heliolitida indet.
Frech 1897
|
|||||||
|
Anthozoa
- Heliolitida
- Halysitidae
|
|||||||
|
Procatenipora approximatoforma
|
Rozman and Minzhin 1980 | ||||||
|
Stromatoporoidea
- Clathrodictyida
- Clathrodictyidae
|
|||||||
|
Clathrodictyon vormsiense
Riabinin 1951
|
|||||||
|
Stromatoporoidea
- Labechiida
- Rosenellidae
|
|||||||
|
Cystostroma fritzae
|
|||||||
| see common names | |||||||
Geography
| Country: | Mongolia | State/province: | Bayanhongor |
| Coordinates: | 46.4° North, 100.3° East (view map) | ||
| Paleocoordinates: | 27.3° North, 20.5° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | small collection |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
| Key time interval: | Katian | Graptolite zone: | Pleurograptus linearis |
| Age range of interval: | 453.00000 - 445.20000 m.y. ago |
Stratigraphy
| Formation: | Tsagaan Del | Member: | Lower | ||
| Local section: | Tsagaan Del | Local bed: | 200 - 210 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: unit 2, 12 m thick. However, Rozman & Minzin (1980) give it as 10 meters. Chakyr or Chakyrii stage locally. | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Lithology description: Bolshakova & Ulitina 1985: reef-like limestone lens intercalated in sandstones. Rozman & Minzhin 1980: Grey pelitomorphic, medium-laminated, compact (they form the high ridge recognizable in relief), organogenic limestones: individual intercalations are packed with gastropods, with scarce remains of tabulate corals; eastward along the strike, these coral-gastropod limestones are replaced by sandy brachiopod limestones with sandstone seams. | |
| Environment: | reef, buildup or bioherm |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | peel or thin section,field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Reef 2668; Tsagan-Del | ||
| Database number: | 79589 | ||
| Authorizer: | W. Kiessling, P. Wagner | Enterer: | U. Merkel, P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2008-03-14 03:38:21 | Last modified: | 2015-06-23 10:42:43 |
| Access level: | authorizer only | Released: | 2010-03-14 03:38:21 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 26709. | L. N. Bolshakova and L. M. Ulitina. 1985. Stromatoporaty i biostratigrafiya nizhnego paleozoya Mongolii [Stromatoporata and biostratigraphy of the Lower Paleozoic of Mongolia]. Trudy Sovmestnaya Sovetsko-Mongolskaya Paleontologicheskaya Ekspeditisiya [Transactions of the Joint Soviet-Mongolian Paleontological Expedition] 27:5-94 [W. Kiessling/U. Merkel] |
Secondary references:
| 55575 | K.h. S. Rozman and C.h. Minzhin. 1980. Stratigraphy of the Ordovician Ashgillian Stage of Western Mongolia. International Geology Review 22(5):575-586 [P. Wagner/P. Wagner/P. Wagner] |