Graptolithina

Thallograptus Öpik, 1928

Taxon ID: 9777 | 2013-08-13 / 2014-09-08
Fossil group: Graptolithina
Belongs to:
Stratigraphic range: Ordoviitsium Silur (within ca. 488.3–416.0 million years)
Baltoscandian species (in database):
References based on distribution