Geisonoceras has an orthoconic shell with transverse lirae and striae that are periodically thickened.
Wow! Check this new addition to the Rock Shed’s gift department. This is an exceptional Geisonoceras Fossil Dish. The lovely dish has a good variety of interesting fossils throughout with a great preserved Geisonoceras. This beauty measures 8 1/4″ x 6″ x 1 3/8″. This highly polished Fossil dish is a great collector item while also being functional. Super cool.