Bap, western Rajasthan: Sakmarian, India
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Eurydesmatidae
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Eurydesma hobartense
(Johnston 1887)
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| ssp. rotundatum | ||||||||||
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Strophomenata
- Productida
- Strophalosiidae
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Strophalosia perfecta n. sp.
Waterhouse and Ranga Rao 1989
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| recombined as Etherilosia perfecta | ||||||||||
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Strophomenata
- Orthotetida
- Schuchertellidae
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Arctitreta bapensis n. sp.
Waterhouse and Ranga Rao 1989
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Rhynchonellata
- Spiriferinida
- Syringothyrididae
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Subansiria ranganensis
Sahni and Srivastava 1956
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= Cyrtella sp.
Fredericks 1924
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Archbold et al. 1996 | |||||||||
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Rhynchonellata
- Spiriferinida
- Paraspiriferinidae
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Lamniplica punctata n. gen., n. sp.
Waterhouse and Ranga Rao 1989
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Rhynchonellata
- Spiriferida
- Trigonotretidae
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? Aperispirifer sp.
Waterhouse 1968
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= Trigonotreta sp.
Koenig 1825
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Archbold et al. 1996 | |||||||||
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Rhynchonellata
- Terebratulida
- Dielasmatidae
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? Elasmata retusus
Waterhouse 1982
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= ? Elasmata informal sp. nov.
Waterhouse 1982
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Archbold et al. 1996 | |||||||||
| see common names | ||||||||||
Geography
| Country: | India |
| Coordinates: | 27.4° North, 72.3° East (view map) |
| Paleocoordinates: | 56.8° South, 50.9° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Permian | Epoch: | Cisuralian |
| Stage: | Sakmarian | 10 m.y. bin: | Permian 2 |
| Key time interval: | Sakmarian | Other zone: | Granulatisporites confluens |
| Age range of interval: | 293.52000 - 290.10000 m.y. ago |
Stratigraphy
| Formation: | Bap | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Granulatisporites confluens pollen zone, assigned by authors to mid-Asselian but to early Sakmarian (Tastubian) by Archbold et al., 1996.
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Lithology and environment
| Primary lithology: | lithified "siliciclastic" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Only part of the fauna was available for study. | |
Metadata
| Database number: | 39932 | ||
| Authorizer: | D. Bottjer, M. Clapham | Enterer: | M. Clapham |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2004-06-12 15:20:06 | Last modified: | 2023-11-27 23:22:26 |
| Access level: | the public | Released: | 2004-06-12 15:20:06 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10834. | J. B. Waterhouse and A. Ranga Rao. 1989. Early Permian brachiopod and bivalve species from the Bap Formation of Peninsula India. Paläontologische Zeitschrift 63:25-39 [D. Bottjer/M. Clapham/J. Alroy] |
Secondary references:
| 27744 | N. W. Archbold, S. C. Shah, and J. M. Dickins. 1996. Early Permian brachiopod faunas from peninsular India: their Gondwanan relationships. Historical Biology 11:125-135 [M. Clapham/M. Clapham/M. Uhen] |