(2) Nayband, Bidestan Member: Sevatian, Iran
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Arcida
- Parallelodontidae
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Grammatodon (Cosmetodon) mediodepressum
Krumbeck 1913
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3 individuals | |||||||||
Bivalvia
- Myalinida
- Mysidiellidae
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Mysidiella imago
Hautmann 2001
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1 individual | |||||||||
Bivalvia
- Pectinida
- Limidae
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Antiquilima hians
Hautmann 2001
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Serania seranensis
Krumbeck 1923
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1 individual | |||||||||
Plagiostoma subvaloniense
Krumbeck 1923
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Bivalvia
- Pectinida
- Entoliidae
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Entolium (Entolium) incognitum
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1 individual | |||||||||
Bivalvia
- Pectinida
- Pectinidae
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Indopecten seinaamensis
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1 individual | |||||||||
Indopecten glaber
Douglas 1929
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1 individual | |||||||||
Indopecten serraticosta
(Bittner 1899)
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9 fragments | ||||||||||
Bivalvia
- Ostreida
- Cassianellidae
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Cassianella inaequiradiata
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88 individuals at 4 localities (14 different horizons) | ||||||||||
Bivalvia
- Ostreida
- Pteriidae
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Pteria (Pteroperna) malayensis
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3 individuals | |||||||||
original and current combination Pteroperna | ||||||||||
Bivalvia
- Ostreida
- Pinnidae
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Pinna (Pinna) sp.
Linnaeus 1758
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sp. A; approx. 30 fragmented pieces at 5 localities (9 different horizons) | ||||||||||
Pinna (Pinna) cf. tommasii
(Wohrmann and Koken 1892)
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some fragments | ||||||||||
Bivalvia
- Ostreida
- Ostreidae
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Umbrostrea emamii
Hautmann 2001
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82 individuals at 5 localities (14 different horizons) | ||||||||||
Bivalvia
- Lucinida
- Lucinidae
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Schafhaeutlia sphaerioides
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2 individuals | |||||||||
Bivalvia
- Pholadomyida
- Chaenomyidae
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? Chaenomya sp.
Meek 1864
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1 individual | |||||||||
sp. B | ||||||||||
Bivalvia
- Pholadomyida
- Pholadomyidae
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Homomya informal sp. A
Agassiz 1843
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1 individual | |||||||||
sp. A | ||||||||||
Homomya sublariana
Krumbeck 1913
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61 individuals | |||||||||
Bivalvia
- Thraciida
- Burmesiidae
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Burmesia praecursor
Krumbeck 1913
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1 individual | |||||||||
Bivalvia
- Cardiida
- Anthracosiidae
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Unionites griesbachi
(Bittner 1899)
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approx. 40 individuals at 5 localities (8 different horizons) | ||||||||||
Bivalvia
- Cardiida
- Palaeocarditidae
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Palaeocardita iranica
Hautmann 2001
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1 individual | |||||||||
var. multiradiata | ||||||||||
Bivalvia
- Cardiida
- Cardiidae
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Protocardia contusa
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12 individuals | |||||||||
Protocardia rhaetica
(Merian 1853)
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1 individual | |||||||||
Bivalvia
- Cardiida
- Pterocardiidae
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Vietnamicardium aff. altum
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1 individual | |||||||||
synonym of Cardium (Tulongocardium) | ||||||||||
Bivalvia
- Carditida
- Astartidae
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Opis (? Trigonopis) douglasi n. sp.
Hautmann 2001
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5 individuals | |||||||||
Bivalvia
- Trigoniida
- Myophoriidae
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Gruenewaldia iranica
Hautmann 2001
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2 individuals | |||||||||
Costatoria napengensis
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8 individuals | |||||||||
Costatoria myophoria
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1 individual | |||||||||
Costatoria weishanensis
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1 individual | |||||||||
Bivalvia
- Nuculida
- Nuculidae
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Trigonucula cf. goniocostata
Hautmann 2001
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1 individual | |||||||||
Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana (Nuculana) aff. perlonga
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1 individual | |||||||||
see common names |
Geography
Country: | Iran |
Coordinates: | 32.4° North, 57.5° East (view map) |
Paleocoordinates: | 12.9° South, 43.8° East |
Basis of coordinate: | estimated from map |
Geographic resolution: | small collection |
Time
Period: | Triassic | Epoch: | Late/Upper Triassic |
Stage: | Norian | 10 m.y. bin: | Triassic 4 |
Key time interval: | Sevatian | ||
Age range of interval: | 212.00000 - 205.60000 m.y. ago |
Lithology and environment
Primary lithology: | lithified "mixed carbonate-siliciclastic" |
Lithology description: The Bidestan Member consists mainly of siliciclastics (siltstone and fine sandstone), calcareous sandstone and shelly limestone also occurs. | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Articulated whole bodies: | some |
Fragmentation: | occasional |
Collection methods and comments
Collection excludes: | some macrofossils |
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: Specimen housed at the Palaeontologisches Institut der Universitat Wurzburg (PIW) |
Metadata
Database number: | 49198 | ||
Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
Modifier: | M. Clapham | Research group: | marine invertebrate |
Created: | 2005-04-11 04:26:32 | Last modified: | 2017-08-01 20:09:13 |
Access level: | the public | Released: | 2005-04-11 04:26:32 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
13062. | M. Hautmann. 2001. Die Muschelfauna der Nayband-Formation (Obertrias, Nor - Rhät) des östlichen Zentraliran. Beringeria 29:3-181 [M. Aberhan/M. Aberhan/M. Aberhan] |