Spiral Graptolite, Oktavites spiralis (Geinitz), Cyrtograptus, graptolite from Silurian, Wenlockian 433.4 - 427.4 million years ago.

Amberabg Fossil Store

Silurian, Wenlockian Graptolite, Oktavites spiralis (Geinitz)

Spiral Graptolite

Spirograptus

--> gr46