Abnak I, (63) IA-2877, Elburz Mountains (Carboniferous of Iran)

Where: Iran (36.0° N, 51.6° E: paleocoordinates 31.4° S, 61.4° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: D Member (Geirud Formation), Visean (346.7 - 330.9 Ma)

• Originally assigned to Sakmarian, but foraminifera confirm Visean age (Gaetani et al., 2009).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Primary reference: N. Fantini Sestini. 1966. The geology of the Upper Djadjerud and Lar Valleys (North Iran) II; Palaeontology: brachiopods from Geirud Formation, Member D (Lower Permian). Rivista Italiana di Paleontologia e Stratigrafia 72(1):9-50 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90015: authorized by Matthew Clapham, entered by Matthew Clapham on 28.06.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Aulostegidae
Taeniothaerus iranicus n. sp. Fantini Sestini 1966
 Productida - Monticuliferidae
"Stepanoviella rossiae" = Globiella rossiae
"Stepanoviella rossiae" = Globiella rossiae Fantini Sestini 1966
 Productida - Echinoconchidae
Waagenoconcha abnakensis n. sp. Fantini Sestini 1966
 Orthotetida - Derbyiidae
? Derbyia sp. Waagen 1884
 Orthotetida - Schuchertellidae
"Streptorhynchus cf. bioni" = Arctitreta bioni
"Streptorhynchus cf. bioni" = Arctitreta bioni Reed 1932
Rhynchonellata
 Spiriferinida - Syringothyrididae
? Pseudosyringothyris sp. Fredericks 1916
 Spiriferida - Trigonotretidae
"Neospirifer paucicostulatus" = Koenigoria paucicostulata
"Neospirifer paucicostulatus" = Koenigoria paucicostulata Reed 1925
 Athyridida - Athyrididae
Spirigerella sp. Waagen 1883