Koshak-Danian (Paleocene of Kazakhstan)
Where: Kazakhstan (44.6° N, 51.6° E: paleocoordinates 39.3° N, 45.3° E)
• coordinate stated in text
When: Danian (66.0 - 61.6 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; limestone and marl
• Bed 9 comprises firm white chalk containing discontinuous flaser marl partings and is rather unfossiliferous. Bed 10 is a chalk containing many thin wispy flaser marls and abundant echinoids. Beds 11 and 12 are pinkish-grey chalkstone containing abundant debris of clacite fossils and underlie a sharply defined hardground which does not show evidence of boring. Beds 13 and 14 are yellow and marly
Size class: macrofossils
Primary reference: C. H. Jeffery. 1997. All Change at the Cretaceous-Tertiary Boundary? Echinoids from the Maastrichtian and Danian of the Mangyshlak Peninsula, Kazakhstan. Palaeontology 40(3):659-712 [L. Ivany/P. Wall/P. Wall]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 48023: authorized by Linda Ivany, entered by Patrick Wall on 10.03.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Echinoidea | |
|
Echinocorys obliqua sea urchin
Galeaster bertrandi sea urchin | |
|
Cyclaster integer heart urchin | |