Where: Khasagt-Khairkhan, Mongolia (46.3° N, 102.8° E: paleocoordinates 4.9° S, 1.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Ilsanella compressa small shelly zone, Middle Member (Bayangol Formation), Nemakit-Daldynian (538.8 - 525.5 Ma)

• Originally thought that specimens are located at the top of the Atdabanian Stage. However, Smith et al. (2016) show that the unit is pre-Tommotian.

• member-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size classes: mesofossils, microfossils

Preservation: cast

Collection methods: bulk, chemical,

• Collection consists of casts and shells of unknown composition. A considerable amount of the material studied was obtained from the samples of M. N. Korobov.

Primary reference: V. V. Missarzhevsky. 1980. Early Cambrian mongolian hyolitha and gastropoda. Paleontological Journal 15(1):18-25 [M. Patzkowsky/P. Borkow/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10116: authorized by Mark Patzkowsky, entered by Phil Borkow on 15.02.2001

Creative Commons license: CC BY (attribution)