Kolbay section, level 2 (Cretaceous of Kazakhstan)

Where: Kazakhstan (43.7° N, 54.0° E: paleocoordinates 37.5° N, 49.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Mortoniceras (Subschloenbachia) perinflatum ammonoid zone, Late/Upper Albian (105.3 - 99.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, concretionary, glauconitic, sandy siltstone

• Slow and/or interrupted sedimentation in a low-energy neritic environment (thin beds, occurrence of glauconite/phosphate, no evidence of reworking or transport, bivalves often articulated). They are interpreted here as condensed units.
• Silty limestone concretions in glauconitic sandy silt

Size class: macrofossils

Preservation: concretion

Reposited in the OUM

Primary reference: W. J. Kennedy, C. King, and D. J. Ward. 2008. The upper Albian and lower Cenomanian succession at Kolbay, eastern Mangyshlak (southwest Kazakhstan). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre 78:117-147 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 175008: authorized by Matthew Clapham, entered by Matthew Clapham on 02.12.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Hoplitidae
Arrhaphoceras (Arrhaphoceras) subtetragonum, Callihoplites dorsetensis, Lepthoplites gracilis
Callihoplites dorsetensis Spath 1928 ammonite
Lepthoplites gracilis Spath 1928 ammonite
 Ammonitida - Placenticeratidae
Placenticeras kolbajense
Placenticeras kolbajense Sokolov 1967 ammonite
 Ammonitida - Baculitidae
Lechites (Lechites) moreti
Lechites (Lechites) moreti Breistroffer 1936 ammonite
 Ammonitida - Turrilitidae
"Idiohamites dorsetensis" = Mariella dorsetensis
"Idiohamites dorsetensis" = Mariella dorsetensis Spath 1926 ammonite