Medusa, Jellyfish, model Triceratops The density of specimens in

The density of specimens in the Aspidella beds suggests levels of benthic biomass in the Neoproterozoic that could rival those of modern marine communities

This wrapping

Astephus antiquus is an extinct for of catfish found in the Green River Formation of Wyoming

The Palaeochyropteryx was light and manuverable and flew slow and close to the ground and foliage

Medusa, Jellyfish, model Triceratops The density of specimens inThe jellyfish belongs to the phylum Cnidaria and is considered a living fossil, uses its bell shaped, gelatinous form to propel itself through water. Unfortunately, only very few fossils of these prehistoric animals have been found. Most likely the first jellyfish came into existence earlier than 600 million years ago. Their size ranges from a few centimeters to almost two meters in diameter. Last photo shows a 4 models in this series. Collect them