Medusa, Jellyfish, model Triceratops The Palaeochyropteryx was light and

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

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

The line where each septum meets the outer shell is called the suture or suture line

This wrapping

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

Medusa, Jellyfish, model Triceratops The Palaeochyropteryx was light andThe 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