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a skeleton with skull
Ediacaran (=Vendian) period
Protostega meaning (first roof) is an extinct genus of marine turtle containing a single species
eastern Utah
Rhamphorhynchus gemmingi, skeleton #1 Iguanodon a skeleton with skullRhamphorhynchus, meaning "beak snout", is a genus of long tailed pterosaurs from the Jurassic period. Less specialized than contemporary, short tailed pterodactyloid pterosaurs such as Pterodactylus, it had a long tail, stiffened with ligaments, which ended in a characteristic diamond shaped vane. The jaws of Rhamphorhynchus housed needle like teeth, which were angled forward, with a curved, sharp, beak like tip lacking teeth, indicating a diet mainly