Localities 20-21 (Jurassic of Russian Federation)

Where: Karachaevo-Cherkessiya, Russian Federation (43.9° N, 41.9° E: paleocoordinates 38.4° N, 47.7° E)

• coordinate estimated from map

When: Niortense ammonoid zone, Djangura Formation, Late/Upper Bajocian (171.6 - 167.7 Ma)

• Orthogarantiana humilis faunal horizon, lower in the Humilis Subzone of the Niortense zone (Mitta, 2021c).

Environment/lithology: marine; claystone

Size class: macrofossils

Reposited in the PIN

Collection methods: surface (in situ),

• Borissiak Paleontological Institute, Russian Academy of Sciences (PIN RAS), coll. no. 5546.

Primary reference: V. V. Mitta. 2024. Superfamily Perisphinctoidea (Ammonoidea) in the Bajocian–Lower Bathonian of the Kuban River Basin (Northern Caucasus, Russia). Paleontological Journal 58(1):44-55 [S. Peters/E. Mazko]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 234980: authorized by Shanan Peters, entered by Evgeny Mazko on 27.05.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Perisphinctidae