Stratotype Point Base of Callovian

label Stratotype Point Base of Callovian
ratified GSSP false
comment candidates are Pfeffingen (Swabian Alb, SW Germany) and in Russia
correlation event Ammonite FAD of the genus Kepplerites (Kosmoceratidae)
(defines Base of Macrocephalites herveyi Zone in sub-Boreal province of Great Britain to southwest Germany)
StratigraphicPoint original
Resource original
Concept original
represents boundary
Base of Callovian original
stratotype BaseCallovianSP original
see also index.html original