Tullimonstrum gregarium, Tully Monster - DLD 3635 Fish Fossils These marine creatures lived in

These marine creatures lived in the lower cretaceous to upper cretaceous time period

when arranged in perfect geometry

Diplomystus dentatus was one of those Green River fish and was related to today's herring

USA during the Late Cretaceous period

We carry very little Onyx compared with other shops for the simple reason

Tullimonstrum gregarium, Tully Monster - DLD 3635 Fish Fossils These marine creatures lived inTullimonstrum gregarium, popularly known as The Tully Monster, is the Illinois State Fossil & is perhaps one of the most mysterious fossils ever unearthed Age of the Tully Monster During the Pennsylvanian Period (roughly 307 million years ago), the land that is now Illinois lay near Earth's equator. Dense swamps, forested with primitive plants, covered much of western and central Illinois. In shallow seas nearby, the Tully monster swam along with