(2) Nayband, Bidestan Member (Triassic of Iran)

Where: Iran (32.4° N, 57.5° E: paleocoordinates 12.9° S, 43.8° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Bidestan Member (Nayband Formation), Sevatian (212.0 - 205.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; lithified mixed carbonate-siliciclastic sediments

• The Bidestan Member consists mainly of siliciclastics (siltstone and fine sandstone), calcareous sandstone and shelly limestone also occurs.

Size class: macrofossils

Collection methods: Specimen housed at the Palaeontologisches Institut der Universitat Wurzburg (PIW)

Primary reference: M. Hautmann. 2001. Die Muschelfauna der Nayband-Formation (Obertrias, Nor - Rhät) des östlichen Zentraliran. Beringeria 29:3-181 [M. Aberhan/M. Aberhan/M. Aberhan]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49198: authorized by Martin Aberhan, entered by Sabine Nürnberg on 11.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Nuculida - Nuculidae
Trigonucula cf. goniocostata
Trigonucula cf. goniocostata Hautmann 2001 nut clam
 Nuculanida - Nuculanidae
Nuculana (Nuculana) aff. perlonga
 Trigoniida - Myophoriidae
Gruenewaldia iranica, Costatoria napengensis, Costatoria myophoria, Costatoria weishanensis
Gruenewaldia iranica Hautmann 2001 clam
 Carditida - Astartidae
Opis (? Trigonopis) douglasi n. sp.
Opis (? Trigonopis) douglasi n. sp. Hautmann 2001 clam
 Lucinida - Lucinidae
Schafhaeutlia sphaerioides
 Thraciida - Burmesiidae
Burmesia praecursor
Burmesia praecursor Krumbeck 1913 clam
 Pholadomyida - Chaenomyidae
? Chaenomya sp.
? Chaenomya sp. Meek 1864 clam
sp. B
 Pholadomyida - Pholadomyidae
Homomya "sp. A", Homomya sublariana
Homomya "sp. A" Agassiz 1843 clam
sp. A
Homomya sublariana Krumbeck 1913 clam
 Cardiida - Cardiidae
Protocardia contusa, Protocardia rhaetica
Protocardia rhaetica Merian 1853 cockle
 Cardiida - Pterocardiidae
"Vietnamicardium aff. altum" = Tulongocardium
"Vietnamicardium aff. altum" = Tulongocardium clam
 Cardiida - Palaeocarditidae
Palaeocardita iranica
Palaeocardita iranica Hautmann 2001 clam
var. multiradiata
 Cardiida - Anthracosiidae
Unionites griesbachi
Unionites griesbachi Bittner 1899 clam
approx. 40 individuals at 5 localities (8 different horizons)
 Arcida - Parallelodontidae
Grammatodon (Cosmetodon) mediodepressum
 Myalinida - Mysidiellidae
Mysidiella imago
Mysidiella imago Hautmann 2001 clam
 Ostreida - Pinnidae
Pinna (Pinna) sp., Pinna (Pinna) cf. tommasii
Pinna (Pinna) sp. Linnaeus 1758 oyster
sp. A; approx. 30 fragmented pieces at 5 localities (9 different horizons)
Pinna (Pinna) cf. tommasii Wohrmann and Koken 1892 oyster
some fragments
 Ostreida - Pteriidae
"Pteria (Pteroperna) malayensis" = Pteroperna
"Pteria (Pteroperna) malayensis" = Pteroperna pearl oyster
 Ostreida - Cassianellidae
Cassianella inaequiradiata
Cassianella inaequiradiata oyster
88 individuals at 4 localities (14 different horizons)
 Ostreida - Ostreidae
Umbrostrea emamii
Umbrostrea emamii Hautmann 2001 oyster
82 individuals at 5 localities (14 different horizons)
 Pectinida - Limidae
Antiquilima hians, Serania seranensis, Plagiostoma subvaloniense
Antiquilima hians Hautmann 2001 file clam
Serania seranensis Krumbeck 1923 file clam
Plagiostoma subvaloniense Krumbeck 1923 file clam
 Pectinida - Pectinoidae
Indopecten seinaamensis, Indopecten glaber, Indopecten serraticosta
Indopecten glaber Douglas 1929 scallop
Indopecten serraticosta Bittner 1899 scallop
9 fragments
 Pectinida - Entoliidae
Entolium (Entolium) incognitum