State Fossils

Illinois

Tullimonstrum gregarium (Pennsylvanian “Tully Monster”) (see Region 2: Mazon Creek box)

Indiana

Indiana has no state fossil.

Iowa

Iowa has no state fossil.

Michigan

Mammut americanum (American Mastodon) (Figure 3.30)

Minnesota

Minnesota has no state fossil.

Ohio

Isotelus maximus (Ordovician trilobite) (Figure 3.7A)

Wisconsin

Calymene celebra (Ordovician trilobite) (Figure 3.7B)