Archaeopteryx or "Allosaurus", which had a crocodile-like anatomy of the brain and inner ear. Newer research shows that while the "Archaeopteryx" brain was more complex than that of more primitive theropods, it had a more generalized brain volume among Maniraptora dinosaurs, even smaller than that of other non-avian dinosaurs in several instances, which indicates the neurological development required for flight was already a common trait in the maniraptoran clade. Recent studies of flight feather barb geometry reveal that modern birds possess a larger barb angle in the trailing vane of the feather, whereas "Archaeopteryx" lacks this large barb angle, indicating potentially
Specimens of Archaeopteryx totaling 1,756 Solnhofen specimens - was purchased the following year. In this way the London Museum came to acquire a truly important collection of fossils, many of them quite rare or undescribed at the time. Wellnhofer remarks that it was likely not the price that kept the Bavarian State Paleontological Collection in Munich from acquiring the fossil, but rather the hesitating attitude of Andreas Wagner which delayed any action. Following Wagner's death in 1861, negotiations with Häberlein certainly would have been all the more difficult. In the wake of this important transaction of the first "Archaeopteryx" body fossil, many German