Where: Altai (Region), Russian Federation (52.0° N, 86.0° E: paleocoordinates 5.2° S, 15.3° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Lejopyge laevigata trilobite zone, Tandoshinskaya Formation, Mayan (504.5 - 499.5 Ma)

• Unfortunately, the localities are not designated as either terrigenous or calcareous terrigenous "types". Only vague lithologies 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 Yelandin or Bol'sheishin. PJW: laevigata zone is Tandoshinskaya in this region.

• formation-level stratigraphic resolution

Environment/lithology: argillaceous lithology not reported

Size class: macrofossils

Collection methods: Does not include all of the agnostid trilobites.

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 10062: authorized by Mark Patzkowsky, entered by Phil Borkow on 13.02.2001

Creative Commons license: CC BY (attribution)