The Ornithosauria / An elementary study of the bones of Pterodactyles made from fossil remains found in the Cambridge Upper Greensand, and arranged in the Woodwardian Museum of the University of Cambridge

by H. G. Seeley

7. Proximal articular surface of same specimen.

8. Proximal articular surface of ulna. J.a.9, no. 4.

9. Proximal articular end of ulna from which the olecranon has come away.

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10. Distal end of right ulna. J.a.13, no. 5, p. 43.

11. Distal articulation of the same specimen.

12. Distal end of left ulna. J.a.12, no. 3.

13. Distal articulation of the same specimen.

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