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Stegosaurus Dorsal Plate ProtoceratopsNamed Stegosaurus, or "roof lizard" for it's large, flat dorsal plates, this herbivorous dinosaur is a classic favorite. Scientists debate the purpose of those trademark plates, but many suggest they were used to regulate heat. Filled with blood vessels, the plates could quickly warm the big plant eater when faced towards the sun. Stegosaurus sp. Late Jurassic (150 m. y. a.) Morrison Formation Cleveland Lloyd Quarry, Utah Shipping Included
The generic name is Latin for "paired horns"
former CSSR
Pseudofossils
Due to the sheer quantity of teeth produced over the eons by sharks
and elements from a baby Triceratops
where teeth were absent in the upper jaw tip
however the differences can also be ascribed to the possible juvenile stage of the animal and/or a different feeding niche
Astephus antiquus is an extinct for of catfish found in the Green River Formation of Wyoming
Starfish have remained relatively unchanged throughout their 500-million-year history
Scientific name: Bothriolepis panderi Location: Morocco Age: Devonian
A primitive chordate from the Burgess Shale
heavy vertebrae and ribs
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