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Humans have been encountering the fossilized remains of dinosaurs for millennia. The myth of the dragon, for instance, may be based on discoveries of dinosaur fossils. As an example, Chinese historian, Chang Qu mislabeled such a fossil as a dragon in the 4th century B.C.E. The concept of dinosaurs as a group, however, occurred much more recently…in the nineteenth century, in fact. The first published description of what is now known to be a dinosaur bone (but was thought to be the thighbone of a giant human at the time) occurred in the seventeenth century.

British geologist and paleontologist Gideon Mantell is famous for his contributions to the scientific discovery of dinosaurs. In 1825, he described and validly named the second dinosaur genus, Iguanodon. In 1833, he described another dinosaur, which was later used, along with Iguanodon and Megalosaurus, to define Dinosauria. A gunpowder explosion at a quarry in Tilgate Forest, West Sussex, revealed a collection of about fifty fossil bone pieces that were acquired by Mantell in 1832. Mantell discovered that the pieces could be combined into a single, partially articulated skeleton, the most complete dinosaur skeleton known at the time.

The second validly-named dinosaur was Iguanodon, but the identification of its fossils as a distinct and extinct species was a somewhat long and arduous process. In 1822, Gideon Mantell, English geologist and paleontologist, came into possession of some large fossil teeth, discovered either by himself or his wife, Mary Ann.

In 1676, the lower part of a massive femur was discovered in the Taynton Limestone Formation of Stonesfield limestone quarry, Oxfordshire. The bone was given to Robert Plot, Professor of Chemistry at the University of Oxford and first curator of the Ashmolean Museum. Plot published a description of it in 1677 in the Natural History of Oxfordshire.

Pterosaurs, flying reptiles that lived 228-66 million years ago, are the earliest vertebrates known to have evolved the capacity for powered flight. The first known pterosaur specimen was described by Cosimo Alessandro Collini in 1784. Twenty years earlier, in 1764, Collini had been appointed to supervise the Naturalienkabinett at Mannheim, established as part of the Kurpfälzische Academy of Sciences, in present-day Germany. The first-known pterosaur specimen arrived at Mannheim sometime between 1767 and 1784, probably originating from Bovaria. Collini was baffled by the specimen, but deduced that it was not a bird or a bat.

When the fossils of extinct species were first discovered, they were often misidentified. Case in point: Ichthyosaurs. The first probable illustrations of ichthyosaur fossils were published by Edward Lhuyd in his Lithophylacii Brittannici Ichnographia, 1699. He attributed the fossils to fish. In 1708, Swiss naturalist Johann Jakob Scheuchzer attributed two ichthyosaur vertebrae to a man who drowned during the Biblical flood. In 1783, an ichthyosaur jaw with teeth was exhibited by the Society for Promoting Natural History as those of a crocodilian.

We’re so excited that our #FossilStories Citizen Science Challenge was successfully completed on October 12, with 252 pages from 9 field books fully transcribed and reviewed in just 3.5 days! Be sure to tune into the behind-the-scenes tour of Smithsonian fossil collections with Dr. Nicholas Pyenson, Curator of Fossil Marine Mammals at the Smithsonian’s National Museum of Natural History, via the BHL Periscope on October 26 as a reward for the successful completion of the challenge.