Where: Altai (Region), Russian Federation (52.0° N, 86.0° E: paleocoordinates 4.9° S, 15.7° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Glyptagnostus stolidotus trilobite zone, Kul'bich Formation, Ayusokkanian (499.5 - 497.0 Ma)

• Unfortunately, the localities are not designated as either terrigenous or calcareous-terrigenous ""types"". Only vague lithology can be inferred and ""types"" inferred through the biozone descriptions. If the lithology is the terrigenous type, the formation is Tandoshinskaya, if the lithology is calcareous-terrigenous type, the formation is either Yelandid or Bol'sheishin. AGE: Mayan; refined by A. Hendy (6/2009) on the basis of biostratigraphic data. PJW: stolidotus zone is in the Ayusokkanian local stage & is the Kul'bich formation here.

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collection methods: Glyptagnostus stolidotus occurs in only the argillaceous portions of the section.

Primary reference: Y.e. U. Romanenko. 1984. Trilobites from the Middle-Upper Cambrian boundary beds of Altai. Paleontologicial Journal 19(4):64-74 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10064: authorized by Mark Patzkowsky, entered by Phil Borkow on 13.02.2001

Creative Commons license: CC BY (attribution)