VSEGEI Loc. 8853 Akkerme Peninsula, Lake Balkhash (Silurian of Kazakhstan)

Where: South Central, Kazakhstan (45.4° N, 73.7° E: paleocoordinates 17.2° S, 71.4° E)

• outcrop-level geographic resolution

When: Coronograptus cyphus graptolite zone, Mynaral Formation, Rhuddanian (443.4 - 440.8 Ma)

• Redated as late Rhuddanian in: L. Robin M. Cocks and Rong Jia-yu (2007). Earliest Silurian faunal survival and recovery after the end Ordovician glaciation: evidence from the brachiopods. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 98, pp 291-301 doi:10.1017/S175569100807566X

• formation-level stratigraphic resolution

Environment/lithology: argillaceous limestone and nodular, calcareous mudstone

• The early Silurian brachiopod assemblage is preserved in nodules and nodular interlayers of a calcareous mudstone and argillaceous limestone of Unit 3, which rests on the unfossiliferous sandstone of Unit 2

Size class: macrofossils

Collection methods: VSEGEI

Primary reference: T. L. Modzalevskaya and L. E. Popov. 1995. Earliest Silurian articulate brachiopods from central Kazakhstan. Acta Palaeontologica Polonica 40(4):399-426 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151931: authorized by Pete Wagner, entered by Pete Wagner on 23.10.2013, edited by Mihaela Krause

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Stauriida - Paliphyllidae
Cystipaliphyllum sp. Lavrusevich 1964 horn coral
 Stauriida - Streptelasmatidae
? Streptelasma sp. Hall 1847 horn coral
 Stauriida - Calostylidae
Demospongiae
 Agelasida - Cliefdenellidae
Khalfinaea sp. demosponge
 Lithistida - Anthaspidellidae
Calycocoelia typicalis Bassler 1927 demosponge
unclassified
  -
Strophomenata
 Strophomenida - Leptestiidae
Leangella scissa Davidson 1871
 Strophomenida - Christianiidae
Christiania sp. Hall and Clarke 1892
Rhynchonellata
 Pentamerida - Parastrophinidae
Parastrophina sp. Schuchert and LeVene 1929
 Pentamerida - Stricklandiidae
Stricklandia lens, "Stricklandia mullochensis" = Stricklandia lens mullochensis
Stricklandia lens Sowerby 1839
"Stricklandia mullochensis" = Stricklandia lens mullochensis Reed 1917
subspecies lens mullochensis
 Orthida - Hesperorthidae
Dolerorthis plicata de Sowerby and Murchison 1839
Dolerorthis sowerbyiana Davidson 1869
 Orthida - Dalmanellidae
"Isorthis (Protocortezorthis) prima" = Levenea llandoveriana, "Isorthis prima" = Levenea llandoveriana
"Isorthis (Protocortezorthis) prima" = Levenea llandoveriana Williams 1951
"Isorthis prima" = Levenea llandoveriana Williams 1951
 Spiriferida - Cyrtiidae
Eospirifer cinghizicus Borissiak 1955
 Atrypida - Lissatrypidae
Cyclospirinae indet. Schuchert 1913
Meifodia tulkulensis Modzalevskaya and Popov 1995
 Atrypida -
Zygospiraella duboisi Verneuil 1845