300 million years ago the odd, soft-bodied creature called Tullimonstrum gregarium lived in the muddy Pennsylvanian Period waters. More commonly called the Tully Monster after its 1958 discover, amateur collector Francis Tully. Tully Monsters are often found in the fossils of the Mazon Creek area of Illinois. Tullimonstrum gregarium is now the official state fossil of Illinois. Featuring artwork by April Pedersen. Stamped image is shown. Watermark copyright is not on the stamp you will receive.  100% made in the USA.

Image size:  6.3 x 4.4cm; 2.5 x 1.7 inch.

Select hand-stamped 3 x 2 inch fine hardwood mount, unmounted red rubber or cling foam mount if available.

◉TYPE OF STAMPS:
➽Wood Mounted includes fine hardwood mount, foam cushion and deep etched red rubber ready for use.
➽Unmounted is unmounted deep etched red rubber only.
➽Cling Foam Mount is deep etched red rubber stamp with a cling foam cushion for reusable attachment to acrylic blocks.