ammonites
Sukhoy River, Sette Daban Mountains, unit 18 (Silurian of Russian Federation)

Where: Yakutiya, Russian Federation (63.4° N, 136.7° E: paleocoordinates 29.6° N, 22.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Yunkyur Formation, Ludlow (422.9 - 418.7 Ma)

• 93 m thick, upper Oron Suite

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, dolomitic limestone

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: K. B. Khayznikova. 1989. Biostratigrafiya i tabulyaty biogermnykh otlozheniy rannego paleozoya; Yuzhnoye Verkhoyanye [Biostratigraphy and Tabulata of lower Paleozoic bioherm deposits; southern Verkhoyansk region] [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79424: authorized by Wolfgang Kiessling, entered by Uta Merkel on 07.03.2008