Plesiorycteropus not inclined relative to each other, but about parallel. The astragalus, which is known from four examples, is wide and short and contains a uniquely large posteromedial process. Seven metapodials (middle hand or foot bones) are known, rather variable in size, but MacPhee was unable to separate metacarpals (from the hand) and metatarsals (from the foot). All are rather short and are broad proximally and narrow distally. Among the few known phalanges, the proximal phalange is shorter than the middle one and the distal phalanges are narrow and clawlike. The forelimbs of "Plesiorycteropus" show specializations for "scratch-digging", in which the
Ostromia addition, the ungual (claw) of the first digit of the hand is smaller than the corresponding first metacarpal, while in "Archaeopteryx" the claw is larger. The Haarlem specimen's metatarsals are also estimated to be proportionally longer than those of "Archaeopteryx" specimens. In addition, the Haarlem specimen shares several features with "Anchiornis". Most notably, they both have longitudinal furrows on the top and bottom sides of their manual phalanges (finger bones). While such structures can be a result of collapsed or broken bones (as is the case in several "Archaeopteryx" specimens), the straight, smooth edges of the furrows in "Ostromia" and