Pennsylvania Jellyfish Replica

Description

Pennsylvania Jellyfish Replica measure 4.3 inches. The Pennsylvania Jellyfish Replica are museum quality polyurethane cast. Made in USA. Essex ella asherae is the scientific name. Noudule set of 2. Mason Creek, Illinois.

Essex ella asherae is an extinct genus of scyphozoan jellyfish known from Late Carboniferous fossils containing the species Essex ella asherae is one of the most recurrent organisms in the Mazon Creek fossil beds of Illinois. In the Essex biota of Mazon Creek, it consists of 42 percent of all fossil finds. Its behavior is speculated to be similar to that of modern-day jellyfish.

The Mazon Creek fossil beds are a conservation lagerstätte found near Morris, in Grundy County, Illinois. The fossils are preserved in ironstone concretions, formed approximately 309 million years ago in the mid-Pennsylvanian epoch of the Carboniferous period, which is where the Pennsylvania jellyfish fossils were located.

These concretions frequently preserve both hard and soft tissues of animal and plant materials, as well as many soft-bodied organisms that do not normally fossilize. The quality, quantity and diversity of fossils in the area, known since the mid-nineteenth century, make the Mazon Creek lagerstätte important to paleontologists.

The Essex fauna includes jellyfish, sea worms, snails, saltwater clams, shrimp, sea scorpions, cephalopods and fish. The most common species found is the Essex ella jellyfish. It consists of 42 percent of all fossil finds in the Essex biota.

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