Moscovian
/mɒsˈkəʊvɪən/Geology
adjective
Designating a division of the Upper Carboniferous in eastern Europe and Asia; of or relating to this division.
noun
The Moscovian division of the Upper Carboniferous; the rocks deposited during this time. Compare Westphalian and the note there.
Origin
Late 19th century; earliest use found in Journal of the Iron and Steel Institute. From Moscovian, variant of Muscovian adjective, after French moscovien or Russian moskovskij.