Tornoceras

Tornoceras is a strongly involute, subdiscoidal Middle and Upper Devonian goniatite with a suture that forms six to ten lobes. Aulatornoceras, Protornoceras, Epitornoceras, Lobotornoceras are among related genera included in the Tornoceratidae. Inclusion however varies from classification to classification.

Tornoceras

Tornoceras is a strongly involute, subdiscoidal Middle and Upper Devonian goniatite with a suture that forms six to ten lobes. Aulatornoceras, Protornoceras, Epitornoceras, Lobotornoceras are among related genera included in the Tornoceratidae. Inclusion however varies from classification to classification.