TABLE 1. Hauffiopteryx altera sp. nov., selected measurements (in mm) of FWD-129 (holotype).
| Measurement | ||
| Total preserved length | 590 | |
| Lower jaw | 280 (preserved length) | |
| Maxilla | 92 | |
| Posterior lower jaw to symphysis | 200 | |
| Length | Width | |
| Orbit (right) | 96 | 85 (height) |
| Sclerotic aperture | 35.5 | 38.5 (height) |
| Sclerotic ring | 88 | 79 (height) |
| Humerus (right) | 46 | 32 (proximal) 41 (distal) |
| Radius (right) | 26 | 25 |
| Ulna (right) | 26 | 25 |
| Coracoid (right) | 59 | 50 |
| Scapula (right) | 71 | 32 (proximal) 23 (distal) |
TABLE 2. Hauffiopteryx comparative measurements (mm).
| Specimen/taxon | Approximate presacral length (without skull) |
Lower jaw (length) |
Antorbital rostrum | Humerus (length) |
Femur (length) |
| FWD-129 (H. altera sp. nov.) | -- | >280 | -- | 46 | -- |
| GPIT 1491/4 (H. typicus) | 620 | 380 | ~216 | 57 | 35 |
| GPIT/RE/12905 (H. typicus) | -- | 462 | 306 | -- | -- |
| BRSLI M1399 (H. typicus) | 590* | 322 | 192* | 47* | 30* |
| SMNS 51552 (H. typicus) | ~930 | >520 | >295 | 75 | 54 |
| SMNS 80226 (H. typicus) | ~879 | 440 | 258 | 59 | 40 |
| MHH 9 (H. typicus) | -- | 460 | 282 | 68 ** | -- |
| NMO 26575 (H. typicus) | -- | 370-400 mm*** | 247*** | -- | -- |
| SMNS 81367 (Hauffiopteryx sp.) | -- | 385 | -- | 60 | -- |
| SMNS 80225 (Hauffiopteryx sp.) | ~809 | incomplete | incomplete | 53 | 30 |
| SMNS 81962 (Hauffiopteryx sp.) | -- | -- | -- | -- | 49 |
| SMNS 81965 (Hauffiopteryx sp.) | ~997 | >280 | -- | 57 | -- |
* measured from photos in Cain and Benton (2011)
** measured from photo in Maisch (2008)
*** from Maisch and Reisdorf (2006)
