THE DEVELOPMENT OF THE LUDLOVIAN GRAPTOLITE SAETOGRAPTUS VARIANS

Authors


Abstract

The Ludlovian graptolite Saetograptus varians (Wood 1900) has been isolated from a limestone matrix. The thecal structure indicates that the species is closer to the genus Saetograptus Přibyl 1942, emend. Urbanek 1958, than to Colonograptus Přibyl 1942, emend. Urbanek 1958; but it requires that the definition of the former be amended to include Colonograptus as a junior synonym.

Ancillary