Where: Armenia (39.5° N, 45.4° E: paleocoordinates 0.8° S, 39.0° 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
Collection methods: peel or thin section
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 113726: authorized by Matthew Clapham, entered by Matthew Clapham on 04.08.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Ascidiacea | |
"Khmeria pumila" = Khmeria problematica
"Khmeria pumila" = Khmeria problematica Mansuy 1914 sea squirt | |
Strophomenata | |
Spinomarginifera pygmaea Sarycheva 1965 | |
Haydenella kiangsiensis Kayser 1883
Haydenella minuta Sarycheva 1965 | |
Rhynchonellata | |
"Araxathyris minor" = Transcaucasathyris minor, "Araxathyris ogbinensis" = Janiceps ogbinensis
"Araxathyris minor" = Transcaucasathyris minor Grunt 1965
"Araxathyris ogbinensis" = Janiceps ogbinensis Grunt 1965 | |
Terebratuloidea sp. Waagen 1883 | |
Orthotichia parva n. sp.
Orthotichia parva n. sp. Sokolskaja 1965 | |
Enteletes dzhagrensis n. sp.
Enteletes dzhagrensis n. sp. Sokolskaja 1965 | |
Stenolaemata | |
Polypora darashamensis1 Nikiforova 1933 | |
Cephalopoda | |
"Shevyrevites shevyrevi" = Shevyrevites nodosus2
| |
Anthozoa | |
"Pleramplexus leptoconicus" = Cryptophyllum leptoconicum, "Plerophyllum dzhulfense" = Cryptophyllum leptoconicum, "Plerophyllum differentiatum" = Ufimia differentiata, "Plerophyllum armenicum" = Ufimia differentiata
"Pleramplexus leptoconicus" = Cryptophyllum leptoconicum Abich 1878 horn coral
"Plerophyllum dzhulfense" = Cryptophyllum leptoconicum Abich 1878 horn coral
"Plerophyllum differentiatum" = Ufimia differentiata Ilina 1962 horn coral
"Plerophyllum armenicum" = Ufimia differentiata Ilina 1962 horn coral | |
"Plerophyllum cuneatum" = Pentaphyllum cuneatum
"Plerophyllum cuneatum" = Pentaphyllum cuneatum Ilina 1962 horn coral | |
Michelinia vaga Tchudinova 1965 tabulate coral
Michelinia parva Tchudinova 1965 tabulate coral |