- Fossil -
360 Million Years Old
Early Carboniferous Period
The shell is strongly involute, with a small, narrow umbilicus. The suture includes both pointed and rounded elements in the form of a zigzag. The thin shell had a ornament of fine, closely spaced growth lines.
Habitat: Goniatites lived in Carboniferous shelf seas, occuring locally in swarms over reef structures. The shape of its shell suggests that Goniatites was a poor swimmer.
Measurements: Various Sizes ~ 20mm-40mm Diameter