Pteranodon ingens Marsh, Amer. Journ. Sci. xi, p. 508, June 1876.
This species is based upon various bones of the wing-finger of several individuals, and three teeth.
Pteranodon umbrosus.
Ornithocheirus umbrosus Cope, Proc. Amer. Phil. Soc. 1872, p. 471.
Pterodactylus umbrosus Cope, Cret. Vert. p. 65, pl. vii, ff. 1-4.
Marsh (Amer. Journ. Sci. xii, p. 480, Dec. 1876) says this name is a synonym of P. ingens, published two days earlier. As this synonymy is not certain, and as Cope’s species has been figured, I am not ready to accept his views.
Pteranodon velox.
Pterodactylus velox Marsh, Amer. Journ. Sci. iii, p. 247, April 1872, Sep. p. 8.
Based upon the distal end of the right metacarpal of the wing-finger, and the proximal extremity of the adjoining first phalanx, two uncharacteristic parts of the skeleton, Marsh to the contrary notwithstanding. It is doubtful whether the direct comparison of the types will suffice to determine the species with certainty. “Both of the bones are somewhat distorted by pressure.”