Locality 17 (Jurassic of Russian Federation)

Also known as Kyafar river

Where: Karachaevo-Cherkessiya, Russian Federation (43.9° N, 41.5° E: paleocoordinates 38.3° N, 47.4° E)

• coordinate estimated from map

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

• uppermost Niortense Zone, in the Baculatum Subzone

Environment/lithology: marine; claystone

Size class: macrofossils

Preservation: cast, mold/impression, concretion

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 235067: authorized by Shanan Peters, entered by Evgeny Mazko on 29.05.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

• Figs. 1–3. Vermisphinctes sp. [M]: (1) specimen PIN, no. 5546/159: (1a) lateral view, (1b) ventral view; (2) specimen PIN, no. 5546/245, lateral view; (3) specimen PIN, no. 5546/14: (3a) lateral view, (3b) ventral view; Figs. 1–5. Leptosphinctes (Leptosphinctes) hodicus Nikanorova [M]: (1) specimen PIN, no. 5546/15: (1a) ventral view, (1b) lateral view; (2) specimen PIN, no. 5546/158: (2a) lateral view, (2b) apertural view; (3) specimen PIN, no. 5546/367: (3a) lateral view, (3b) ventral view; (4) specimen PIN, no. 5546/368, lateral view; (5) specimen PIN, no. 5546/247: (5a) lateral view, (5b) apertural view; Kyafar River, (1–4)
Cephalopoda
 Ammonitida - Parkinsoniidae
 Ammonitida - Perisphinctidae