Missing and Unexploited Pterosaur 003


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There is no scale in any of the photos, but this photo shows the specimen mounted in a what looks like a relatively small frame, so it is not particularly large. The specimen seems to show the dorsal vertebrae overlying the sternum, which suggests that the specimen is preserved in dorsal view with the right wing to the right and the left to the left. The right wing includes humerus, a single bone in the antebrachium (ulna?), wing metacarpal, and four phalanges. On the left, we have the same series of bones. Notice that the wing metacarpal on the right is oddly curved and digits I-III are well beyond the metacarpophalangeal joint of digit IV. On the left, the wp1 is clearly pterosaurian, immature because of the missing extensor tendon process, and also a left. There is no evidence of scapulocoracoids, radii, carpi, or pteroids.





A rather strange skull that resembles Sinopterus to some extent. I cannot make out a distinct mandible.





The humeri do not have visible deltopectoral crests. Notice the apparent absence of scapulocoracoids. The sternum seems to be oddly bilobate.





Close up of the left wing. Note again the wp1, and also presence of a small metacarpal of one of digits I-III, but note that digits I-III are lying near the wp1, which has its proximal end near the proximal end of wp2 and its distal end near the distal end of the wing metacarpal.





Close up of the left wing finger.





Close up of the hindlimbs. Note the lack of detail in the pelvis, and no evidence of a prepubis or tail.

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