Khovsgol Somon, Unit 2 (Permian of Mongolia)

Where: Mongolia (43.6° N, 109.9° E: paleocoordinates 35.0° N, 89.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Khovsgol Formation, Artinskian (290.1 - 279.3 Ma)

• 52 m thick

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Primary reference: E. E. Pavlova, I. N. Manankov, I. P. Morozova, M. N. Solovjeva, O. D. Suetenko and M. F. Bogoslovskaya. 1991. Permian Invertebrates of Southern Mongolia 1-173 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116247: authorized by Matthew Clapham, entered by Matthew Clapham on 06.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Tubothalamea
 Miliolida - Cornuspiridae
Cornuspira sp.
Cornuspira sp. Schultze 1854
Nodosariata
 Nodosariida - Nodosariidae
Frondicularia sp.
Frondicularia sp. Defrance 1824
Anthozoa
 Stauriida - Hapsiphyllidae
Euryphyllum reidi
Euryphyllum reidi Hill 1938 horn coral
Bivalvia
 Pectinida - Aviculopectinidae
Aviculopecten wimensis
 Pectinida - Heteropectinidae
"Vorkutopecten cf. subclathratus" = Neptunopecten subclathratus, "Aviculopecten hiemalis" = Etheripecten hiemalis
"Vorkutopecten cf. subclathratus" = Neptunopecten subclathratus Keyserling 1846 scallop
"Aviculopecten hiemalis" = Etheripecten hiemalis Salter 1865 scallop
 Pholadomyida - Edmondiidae
Edmondia sp.
Edmondia sp. de Koninck 1841 clam
 Cardiidia - Sanguinolitidae
Myonia (Pachymyonia) cf. carinata, Myofossa subarbitrata
Myofossa subarbitrata Dickins 1963 clam
Strophomenata
 Productida - Productellidae
Paramarginifera nativa
Paramarginifera nativa Manankov 1991
 Productida - Linoproductidae
Cancrinella koninckiana, Cancrinella cancriniformis, Linoproductus lutkewitschi, Megousia aagardi
Cancrinella koninckiana Keyserling 1846
Cancrinella cancriniformis Tschernyschew 1889
Megousia aagardi Toula 1875
 Productida - Monticuliferidae
"Cancrinella pseudotruncata" = Liaozhuotingia pseudotruncata, "Helenaeproductus khubsugulensis n. gen." = Magniplicatina khubsugulensis
"Cancrinella pseudotruncata" = Liaozhuotingia pseudotruncata Ustritsky 1960
"Helenaeproductus khubsugulensis n. gen." = Magniplicatina khubsugulensis Lazarev 1991
 Strophomenida - Rugosochonetidae
Dyoros semicircularis n. sp.
Dyoros semicircularis n. sp. Afanasjeva 1991
Rhynchonellata
 Athyridida - Athyrididae
Cleiothyridina bajkurica
 Spiriferida - Spiriferellidae
Spiriferella ovata
Spiriferella ovata Lee and Gu 1976
 Spiriferida - Trigonotretidae
"Neospirifer koargychanensis" = Crassispirifer koargychanensis
"Neospirifer koargychanensis" = Crassispirifer koargychanensis Zavodowsky 1970
 Rhynchonellida - Stenoscismatidae
Callaiapsida lazarevi, Stenoscisma biplicatum
Callaiapsida lazarevi Pavlova 1991
Stenoscisma biplicatum Stuckenberg 1898
 Spiriferinida - Syringothyrididae
"Primorewia reshetnikovi" = Primorewia reshetnikov
"Primorewia reshetnikovi" = Primorewia reshetnikov Licharew and Kotlyar 1978
Lingulata
 Lingulida - Discinidae
Orbiculoidea sp.
Orbiculoidea sp. d'Orbigny 1847