ammonites
Bolshoy Zelenchuk River, Ispravnaya, N Caucasus (Jurassic to of Russian Federation)

Also known as Reef 3997

Where: Karachayevo-Cherkesiya, Russian Federation (44.1° N, 41.6° E: paleocoordinates 38.2° N, 46.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Oxfordian to Late/Upper Oxfordian (161.2 - 150.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• sandy limestones in the lower part, massive reefal limestones in the upper part (bioherm 12 m thick)

Size class: macrofossils

Primary reference: N. S. Bendukidze. 1982. Pozdneyurskiye korally rifogennykh otlozheniy Kavkaza i Kryma [Upper Jurassic corals from the reef deposits of the Caucasus and Crimea]. Akademiya Nauk Gruzinskoy SSR, Geologicheskiy Institut imeni A I Dzhanelidze, Trudy 74:1-166 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89995: authorized by Wolfgang Kiessling, entered by Uta Merkel on 25.06.2009