The Smithsonian has several new on-line features of interest to readers of the Palaeoblog including an informative listing of its extensive collection of type fossils.
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Among these, many are type specimens, the original and name-bearing specimens for new species. These important materials form a foundation for comparative biology and systematics, because they represent the focal point for the identification and naming of new taxa.
The 40 million specimens in the Paleobiology Department include 250,000 of these types, 46 of which are dinosaurs. These specimens represent only a small fraction of the more than 1000 known dinosaur species, but many are unusually complete and important specimens. In particular, the types of Ceratosaurus nasicornis, Stegosaurus stenops, Camptosaurus browni, and Thescelosaurus neglectus are among the finest specimens known for these dinosaur species.
Click to visit: GEOLOGIC TIME: THE STORY OF A CHANGING EARTH, DINOSAURS!. or LIFE OF A VERTEBRATE FOSSIL.