5 7/8" Mazon Creek Fern Fossil North Central Illinois

5.1/4" Illinois Mazon Creek Fern Fossil with Multiple Specimens. This Section of Relics / Fossils came from the Byron Knoblock Estate Sale in Quincy Illinois Ex Mary Jo Hunt Collection

5 Fossil Ferns Mazon Creek Formation Coal City, Illinois Pennsylvanian 300 M.Y.O.

5 Fossil Ferns Mazon Creek Formation Coal City, Illinois Pennsylvanian, 300 M.Y.O.

2 Mazon Creek Fern Leaf Fossils found in Illinois

5 Fossil Fern Pairs Mazon Creek Formation Coal City, IL

2.1/2" Mazon Creek Fern Fossil, This Section of Relics / Fossils came from the Byron Knoblock Estate Sale in Quincy Illinois Ex Mary Jo Hunt Collection

3 Fossil Fern Nodule (Opened) Pectopteris Mazon Creek Formaion Illinois

Middle Pennsylvanian Period, circa 300 million years B.P.. Comprising two Pecopteris sp. fossil seed fern pairs. 175 grams total, 54-66 mm (2 1/8 - 2 5/8 in.). From the Mazon Creek Fossil Beds, Braidw

Fossil fern pairs (open nodules) Mazon Creek Formation, Illinois Pennsylvanian 300 MYO

7 Pair Pectopteris Annularia Fossils Mazon Creek Illinois 300 M.Y.O.

2 7/8" Apple Creek Arrowhead found in West Central Illinois. Ex Dennis Arbeiter

2 7/8" Tully Monster Fossil- Tail Only-found in the Mazon Creek, in either Will or Grundy County, IL. This is the Illinois State Fossil, and this specimen, while not complete, is excellent for a

Mazon Creek Fern Fossil 3 3/8"

Lot of 2 Mazon Creek Ferns From Illinois- Larger Piece is 3 3/4"

3 3/4" Fern fossil Mazon Creek, IL

Fossil Ferns Mazon Creek Formation Pecopteris IL

Fossil Ferns Mazon Creek Formation 1lb 4oz

Two Fossil Ferns Mazon Creek Formation Pectopteris 13oz

Fossil Ferns Mazon Creek Formation IL 300 M.Y.O.

Fossil Ferns Mazon Creek Formation IL

Fossil Ferns Mazon Creek Form IL

Fossil Ferns Pectopteris Mazon Creek Formation IL

Repaired Fossil Ferns Pectoperis Mazon Creek Formation IL

Both Halves of Fern Fossil Mason Creek Illinois