Lower Reaches of the Anabar River, locality OK/S2, bed 3/1 (Jurassic of Russian Federation)

Where: Russian Federation (72.6° N, 114.1° E: paleocoordinates 77.1° N, 92.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cadochamoussetia tschernyschewi ammonoid zone, Sodiemykha Formation, Early/Lower Callovian (164.7 - 161.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, concretionary, gray, silty, sandy sandstone

• Any environment comment in the paper
• The Sodiemykha Formation is composed of sandy silt and silty sands with lenses of silty clay. The lower part (Bed 2) contains small pebbles of volcanic rocks, fragments of the nacreous layer of ammonite shells, and concretions with bivalve 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 Сadochamoussetia (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 198895: authorized by Adam Kocsis, entered by Monica Alejandra Gomez Correa on 17.01.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Cardioceratidae
Cadoceras cf. simulans, Cadochamoussetia surensis, Cadochamoussetia aff. subpatruus
Cadochamoussetia surensis Nikitin 1885 ammonite
Cadochamoussetia aff. subpatruus Nikitin 1985 ammonite