Lower Reaches of the Anabar River, locality OK/S2, bed 1b (Jurassic of Russian Federation)

Where: Russian Federation (72.6° N, 114.1° E: paleocoordinates 77.7° N, 90.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Arcticoceras ishmae ammonoid zone, Yurung-Tumus Formation, Middle Bathonian (167.7 - 164.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained, brown, gray, sandy sandstone and lithified coal

• Any environment comment in the paper
• The upper part of the Yurung-Tumus Formation is represented by gray, fine-grained sand, with lenses of siltstone and clay and brown ferruginous stains, replaced up the section by think lenses of coal, with fragments of a prismatic layer of inoceramid shells.

Size class: macrofossils

Preservation: concretion, original aragonite

Primary reference: V. G. Kniazev, S. V. Meledina, A. S. Alifirov and B. L. Nikitenko. 2017. The Early Callovian Genus –°adochamoussetia (Ammonoidea, Cardioceratidae) in the Lower Reaches of the Anabar River, Northern Central Siberia. Stratigraphy and Geological Correlation 25(4):26-41 [A. Kocsis/M. Gomez Correa]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 198894: authorized by Adam Kocsis, entered by Monica Alejandra Gomez Correa on 17.01.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Cardioceratidae