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represents one of five species of amphibians which are found at the Messel site
a crucial link between Eocene and Miocene
" Certainly a good number of pieces are known
and rhinoceroses)
Spinosaurus means "spine lizard
Starfish (Class Asteroidea) Troodon represents one of five speciesStarfish (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