Dinosaur
Originally applied to just a handful of incomplete specimens, the
category Dinosauria now encompasses more than 800 generic names and at
least 1,000 species, with new names being added to the roster every year
as the result of scientific explorations around the world. Not all of
these names are valid taxa,
however. A great many of them have been based on fragmentary or
incomplete material that may actually have come from two or more
different dinosaurs. In addition, bones have sometimes been
misidentified as dinosaurian when they are not from dinosaurs at all.
Nevertheless, dinosaurs are well documented by abundant fossil remains
recovered from every continent on Ear
Dinosaur
Dinosaur
Dinosaur
Dinosaur
Dinosaur
Dinosaur
Dinosaur
Dinosaur
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