Essexella asherae, Mazon Creek Jellyfish Replica Compsognathus The land areas were covered

The land areas were covered by forests of conifers

Dimensions: 6" x 7-1/2" x 1"

It would be the centerpiece and focal point of any collection

Their heads were horn-less but equipped with tusk-like lower incisors and were held in a horizontal position

Despite the name

Essexella asherae, Mazon Creek Jellyfish Replica Compsognathus The land areas were coveredJellyfish are extremely rare in the fossil record. This is hardly surprising, considering they completely lack hard parts, and the tissues they do possess are gelatinous. One of the most famous deposits containing fossil jellyfish is the Pennsylvanian aged Mazon Creek Lagersttte near Chicago, Illinois. In the Mazon Creek area, the Francis Creek Shale consists of concretionary gray shales. The Francis Creek concretions are sideritic, and can be