ammonites
Koziulino Village, Tom River, Sample 1, Layer 2 (Oligocene of Russian Federation)

Where: Tomsk, Russian Federation (56.5° N, 82.5° E: paleocoordinates 57.5° N, 80.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Chattian (28.4 - 23.0 Ma)

Environment/lithology: fluvial-lacustrine; unlithified, gray sandstone

• Sand, dark-gray

Size class: mesofossils

Preservation: original carbon

Collection methods: bulk, sieve,

Primary reference: P. I. Dorofeev. 1963. Tretichnye Flory Zapadnoi Sibiri (Tertiary Floras of Western Siberia). Izdat. Akad. Nauk, Moscow/Leningrad. 343 pp. [B. Tiffney/B. Tiffney/B. Tiffney] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 23888: authorized by Bruce Tiffney, entered by Sara Pendleton on 23.07.2002