Bed 47, Bala Well (Devonian of Kazakhstan)

Where: Karagandinskaya Oblast, Kazakhstan (47.3° N, 77.8° E)

• Paleocoordinates: 21.7° N, 42.9° E (Wright 2013)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Kokbajtal Formation, Gedinnine (419.6 - 413.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; tuffaceous sandstone

• tuffaceious sandstone

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 69191: authorized by Pete Wagner, entered by Pete Wagner on 20.02.2007

Creative Commons license: CC0 (CC0)

Taxonomic list

Gastropoda
 Bellerophontida - Tropidodiscidae
Pharetrolites vostokovae Rohr et al. 1979 snail
Tropidodiscus sp. Meek and Worthen 1866 snail
 Murchisoniina - Loxonematidae
Stylonema cf. dilatata Spitz 1907 snail
Loxonema cf. praeteritum Longstaff 1909 snail