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a crucial link between Eocene and Miocene
represents one of five species of amphibians which are found at the Messel site
Being made of gypsum they have a stone-like quality which is totally absent in any resin casting
Jellyfish are extremely rare in the fossil record
Spinosaurus means "spine lizard
Starfish (Class Asteroidea) Troodon a crucial link between EoceneStarfish (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