GK-023, Gerd-Kuh Section (Ordovician of Iran)

Where: Iran (36.2° N, 54.2° E: paleocoordinates 19.2° S, 144.9° E)

When: Baltoniodus navis conodont zone, Gerd-Kuh U15 Formation, Dapingian (470.0 - 467.3 Ma)

• Informal formation name.

• bed-level stratigraphic resolution

Environment/lithology: sandy siltstone

• medium- to thin-bedded sandy siltstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: L. E. Popov and L. R. M. Cocks. 2017. The World’s second oldest strophomenoid-dominated benthic assemblage in the first Dapingian (Middle Ordovician) brachiopod fauna identified from Iran. Journal of Asian Earth Sciences 140:1-12 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 189388: authorized by Pete Wagner, entered by Pete Wagner on 14.10.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Strophomenida - Rafinesquinidae
Dirafinesquina antiqua n. sp. Popov and Cocks 2017
 Pentamerida - Porambonitidae
Eoporambonites raziabadensis Popov and Cocks 2017
 Orthida - Hesperonomiidae
Zhanorthis gerdkuhensis n. sp. Popov and Cocks 2017
 Orthida - Orthidae