Jotnian (English, adj)
expansion: Jotnian (not comparable)
Senses:
topics: geography
geology
natural-sciences
glosses: Belonging to the sediments of a group of Precambrian rocks more specifically assigned to the Mesoproterozoic Era (Riphean), and including the oldest known sediments in the Baltic area that have not been subject to metamorphism.
tags: not-comparable
Forms: