(2) Nayband, Bidestan Member: Sevatian, Iran

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Arcida - Parallelodontidae
Grammatodon (Cosmetodon) mediodepressum Krumbeck 1913
3 individuals
Bivalvia - Myalinida - Mysidiellidae
Mysidiella imago Hautmann 2001
1 individual
Bivalvia - Pectinida - Limidae
Antiquilima hians Hautmann 2001
Serania seranensis Krumbeck 1923
1 individual
Plagiostoma subvaloniense Krumbeck 1923
Bivalvia - Pectinida - Entoliidae
Entolium (Entolium) incognitum
1 individual
Bivalvia - Pectinida - Pectinidae
Indopecten seinaamensis
1 individual
Indopecten glaber Douglas 1929
1 individual
Indopecten serraticosta (Bittner 1899)
9 fragments
Bivalvia - Ostreida - Cassianellidae
Cassianella inaequiradiata
88 individuals at 4 localities (14 different horizons)
Bivalvia - Ostreida - Pteriidae
Pteria (Pteroperna) malayensis
3 individuals
original and current combination Pteroperna
Bivalvia - Ostreida - Pinnidae
Pinna (Pinna) sp. Linnaeus 1758
sp. A; approx. 30 fragmented pieces at 5 localities (9 different horizons)
Pinna (Pinna) cf. tommasii (Wohrmann and Koken 1892)
some fragments
Bivalvia - Ostreida - Ostreidae
Umbrostrea emamii Hautmann 2001
82 individuals at 5 localities (14 different horizons)
Bivalvia - Lucinida - Lucinidae
Schafhaeutlia sphaerioides
2 individuals
Bivalvia - Pholadomyida - Chaenomyidae
? Chaenomya sp. Meek 1864
1 individual
sp. B
Bivalvia - Pholadomyida - Pholadomyidae
Homomya informal sp. A Agassiz 1843
1 individual
sp. A
Homomya sublariana Krumbeck 1913
61 individuals
Bivalvia - Thraciida - Burmesiidae
Burmesia praecursor Krumbeck 1913
1 individual
Bivalvia - Cardiida - Anthracosiidae
Unionites griesbachi (Bittner 1899)
approx. 40 individuals at 5 localities (8 different horizons)
Bivalvia - Cardiida - Palaeocarditidae
Palaeocardita iranica Hautmann 2001
1 individual
var. multiradiata
Bivalvia - Cardiida - Cardiidae
Protocardia contusa
12 individuals
Protocardia rhaetica (Merian 1853)
1 individual
Bivalvia - Cardiida - Pterocardiidae
Vietnamicardium aff. altum
1 individual
synonym of Cardium (Tulongocardium)
Bivalvia - Carditida - Astartidae
Opis (? Trigonopis) douglasi n. sp. Hautmann 2001
5 individuals
Bivalvia - Trigoniida - Myophoriidae
Gruenewaldia iranica Hautmann 2001
2 individuals
Costatoria napengensis
8 individuals
Costatoria myophoria
1 individual
Costatoria weishanensis
1 individual
Bivalvia - Nuculida - Nuculidae
Trigonucula cf. goniocostata Hautmann 2001
1 individual
Bivalvia - Nuculanida - Nuculanidae
Nuculana (Nuculana) aff. perlonga
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
Stratigraphy
Formation:Nayband Member:Bidestan
Stratigraphic resolution:member
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]