Starfish (Class Asteroidea) Troodon Spinosaurus means "spine lizard

Spinosaurus means "spine lizard

Jellyfish are extremely rare in the fossil record

a crucial link between Eocene and Miocene

represents one of five species of amphibians which are found at the Messel site

and rhinoceroses)

Starfish (Class Asteroidea) Troodon Spinosaurus means "spine lizardStarfish (Class Asteroidea) Jurassic Age, Germany Starfish belong to a phylum of invertebrates known as Echinodermata. Echinoderms (Latin for "spiny skin") are named for their porous armor of calcite plates. Primitive Echinoderms first appeared in the fossil record 570 million years ago in the Lower Cambrian Period. Other Echinoderms include sea urchins, sand dollars, sea cucumbers, and sea lilies. The earliest known starfish appeared in the Lower