Dorasham, Ali Bashi Fm, Dzhulfa Gorge, Arax River (Permian of Azerbaijan)

Where: Azerbaijan (39.0° N, 45.5° E: paleocoordinates 1.3° S, 39.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ali Bashi Formation, Changhsingian (254.2 - 252.2 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Preservation: mold/impression

Primary reference: V. E. Ruzhentsev and T. G. Sarycheva. 1965. The Development and Change of Marine Organisms at the Palaeozoic-Mesozoic Boundary. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 108:1-431 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116753: authorized by Matthew Clapham, entered by Matthew Clapham on 11.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Stauriida - Polycoeliidae
"Pleramplexus minimus" = Pentamplexus minimum
"Pleramplexus minimus" = Pentamplexus minimum Iljina 1965 horn coral
 Stauriida - Plerophyllidae
"Plerophyllum differentiatum" = Ufimia differentiata, "Plerophyllum armenicum" = Ufimia differentiata, "Plerophyllum dzhulfense" = Cryptophyllum leptoconicum
"Plerophyllum differentiatum" = Ufimia differentiata Ilina 1962 horn coral
"Plerophyllum armenicum" = Ufimia differentiata Ilina 1962 horn coral
"Plerophyllum dzhulfense" = Cryptophyllum leptoconicum Abich 1878 horn coral
Cephalopoda
 Nautilida - Syringonautilidae
Syringonautilus vagus n. sp. Shimansky 1965 nautiloid
Strophomenata
 Orthotetida - Meekellidae
Orthothetina sp. Schellwien 1900
 Productida -
Spinomarginifera pygmaea Sarycheva 1965
 Productida - Monticuliferidae
Haydenella minuta Sarycheva 1965
Rhynchonellata
 Orthida - Enteletidae
Enteletes dzhagrensis Sokolskaja 1965
 Athyridida - Athyrididae
"Araxathyris minor" = Transcaucasathyris minor
"Araxathyris minor" = Transcaucasathyris minor Grunt 1965
Ascidiacea
 Khmeriamorpha - Khmeriidae
"Khmeria pumila" = Khmeria problematica
"Khmeria pumila" = Khmeria problematica Mansuy 1914 sea squirt