Paleontology
Educational
A place where ModDB members can discuss Paleontology, share their findings and provide explanations should modders require supervision.
Ordovician cephalopod
(view original)
Post a comment
Description
Here is a 450 million year old Cephalopod from the Middle Ordovician period found in a chunk of Michigan limestone.
Middle Ordovician? Isn't that one of the first Actinoceratoidea molluscs?