2.5 km northeast of the town of Rabat-e Qarabil (Silurian of Iran)

Where: North Khorasan, Iran (37.4° N, 56.3° E: paleocoordinates 26.6° S, 137.4° E)

When: Qarabil Formation, Aeronian (440.8 - 438.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: limestone

• The middle part of the sequence consists of 131m of bedded limestones intercalated with argillites

Size class: macrofossils

Primary reference: L. E. Popov and L. R. M. Cocks. 2013. The radiation of early Silurian spiriferide brachiopods, with new taxa from the Llandovery of Iran. Alcheringa 37:558-564 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165945: authorized by Pete Wagner, entered by Pete Wagner on 31.01.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Strophochonetidae
? Shagamella sp. Boucot and Harper 1968
 Orthotetida - Chilidiopsidae
 Strophomenida - Sowerbyellidae
 Strophomenida - Leptostrophiidae
Leptostrophia sp. Hall and Clarke 1892
Brachyprion sp. Shaler 1865
This species of Brachyprion is very comparable with B. arenaceus from the late Llandovery of the Welsh Borderland (Cocks 1967).
 Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
It is generally similar to a number of previously-described species, such as L. ziegleri and L. purpurea from the late Llandovery of the Welsh Borderland (Cocks 1968), but the outline of the disc and valve of the Iranian specimens is more rounded than the rather squarer or more quadrilateral outline of the British forms.
 Strophomenida - Strophomenidae
Rhynchonellata
 Spiriferida - Cyrtiidae
Eospirifer sp. Schuchert 1913
Eospirifer ghobadiae Popov and Cocks 2013
 Spiriferida - Hedeinopsidae
Iranospirifer qarabilensis n. gen. n. sp. Popov and Cocks 2013
 Spiriferida - Ambocoeliidae
 Pentamerida - Clorindidae
? Clorinda sp. Barrande 1879
 Pentamerida - Pentameridae
Pentamerus asiaticus n. sp. Cocks 1979
 Protorthida - Skenidiidae
Skenidioides sp. Schuchert and Cooper 1931
 Atrypida - Atrypidae
? Atrypa sp. Dalman 1828
 Atrypida - Lissatrypidae
Lissatrypa sp. Twenhofel 1914
 Rhynchonellida - Trigonirhynchiidae
Rostricellula sp. Ulrich and Cooper 1942
 Rhynchonellida - Rhynchotrematidae
"Xerxespirifer iranicus n. gen. n. sp." = Stegocornu procerum
"Xerxespirifer iranicus n. gen. n. sp." = Stegocornu procerum Dürkoop 1970
 Orthida - Draboviidae
Salopina brandi n. sp. Cocks 1979
 Orthida - Dicoelosiidae
Dicoelosia sp. King 1850
relatively long, and similar in this respect to D. verneuiliana (Beecher) from the Telychian and Sheinwoodian of Gotland, Sweden (Wright 1968) and D. alticavata (Whittard & Barker) from the Telychian of Britain.
Epitomyonia aff. clausula Johnson et al. 1976
 Orthida - Glyptorthidae
Glyptorthis sp. Foerste 1914
 Orthida - Hesperorthidae
? Hesperorthis sp. Schuchert and Cooper 1931
Dolerorthis sp. Schuchert and Cooper 1931