GISBORNIAN STAGE


Meaning of GISBORNIAN STAGE in English

time division of the Ordovician Period in Australia and New Zealand. The Gisbornian Stage precedes the Eastonian Stage and follows the Darriwilian Stage; it is characterized by the presence of a graptolite fauna in which the genera Nemagraptus and Climacograptus are prominent.

Britannica English vocabulary.      Английский словарь Британика.