Specimens of Archaeopteryx precipitated the first surge of widespread knowledge of the specimen across Europe. In the subsequent years of the 19th century, the London specimen was subject to a number of analyses by other researchers of historical importance, including Thomas Huxley, Othniel Charles Marsh, Wilhelm Dames, and Bronislav Petronievics. Much of this early study was relevant to controversy surrounding the possible taxonomic divisions of "Archaeopteryx" specimens. The London specimen is of obvious special importance because it was the first "Archaeopteryx" skeleton discovered. By coining the name "Archaeopteryx", meaning "ancient wing", von Meyer had declared the animal to be a bird. Despite the
Specimens of Archaeopteryx that "Archaeopteryx" could have raised its short second toe in a similar manner to its dromaeosaur cousin "Deinonychus", whose second toe bore an enlarged "sickle claw" for probable use in predation. It remains unclear whether "Archaeopteryx" also used its hyperextended toe-claw in a similar fashion or for some other purpose. Taken together, many of the unique features of the skull, feet and coracoid strengthen a close relationship of archaeopterygids to deinonychosaurian theropods. Well-preserved imprints of wing and tail plumage show details of the barbs, but not barbules, and the shafts of 11 primaries can be counted on the right wing.