Bed 24 = 64/5, Nurashbasi Well (Devonian of Kazakhstan)

Where: Karagandinskaya Oblast, Kazakhstan (48.2° N, 76.9° E: paleocoordinates 0.2° S, 67.4° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Kokbajtal Formation, Gedinnine (416.0 - 412.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; argillaceous siltstone

• argillite & aleurolite

Size class: macrofossils

Preservation: cast

Collection methods: Palaeontological Institute, USSR.

Primary reference: D. M. Rohr, A.J. Boucot, and G.T. Ushatinskaya. 1979. Early Devonian gastropods from the north Pribalkhash region, central Kazakhstan, USSR. Journal of Paleontology 53(4):981-989 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69183: authorized by Pete Wagner, entered by Pete Wagner on 20.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Murchisoniina - Loxonematidae
Stylonema cf. dilatata Spitz 1907 snail
 Euomphalina - Holopeidae
Holopea sp. Hall 1847 snail
 Euomphalina - Platyceratidae
"Platyceras (Platyostoma) sp." = Platyostoma
"Platyceras (Platyostoma) sp." = Platyostoma Conrad 1842 snail
 Bellerophontida - Tropidodiscidae
Tropidodiscus sp. Meek and Worthen 1866 snail
Pharetrolites vostokovae Rohr et al. 1979 snail