This is the holotype of Archaeopteryx lithographica, type species of Archaeopteryx, BMNH 37001. This specimen is distinguished by its well-preserved braincase in 3D, and by the detailed feather impressions around the bones (which were scattered and hardly in a cohesive articulation). It also has a very large hallux, which is shown positioned in opposition to the others rather than facing towards the side as Middleton suspects, for the sake of comparison. Compared to other Archaeopteryx, it also has the straightest ischium and most of the vertebrae are longer compared to the femur than other specimens.