Table 1.
Comparison of cranial and postcranial elements of selected dromaeosaurid taxa.
| Austroraptor cabazai MML-195 | Unenlagia comahuensis MCF PVPH 78 | Buitreraptor gonzalezorum (Makovicky et al. 2005) | Velociraptor mongoliensis (Barsbold & Osmólska 1999; Norell & Makovicky 1997, 1999) | Deinonychus antirrhopus MCZ 4371 | Achillobator giganticus (Perle et al. 1999) | Utahraptor ostrommaysi (Kirkland et al. 1993) | |
|---|---|---|---|---|---|---|---|
| maxilia | |||||||
| length (cm) | 39a | — | 10b | 10.9c | — | 39 | — |
| heightd (cm) | 8.5 | — | 1.8 | 3.5c | — | 11.6 | — |
| height/length ratio (%) | 21% | — | 18% | 34%c | — | 29% | — |
| tooth count | 24 | — | — | 11c | — | 11 | — |
| humerus | |||||||
| length (cm) | 26.2 | 26.5 b | 13.5 | — | 25.4 | — | — |
| least mid-shaft diameter (cm) | 2.2 | 1.7 | 0.6 | — | — | — | — |
| femur | |||||||
| length (cm) | 56 | 36.8 | 14.5 | 23.8e | 34.4 | 50.5 | — |
| least mid-shaft diameter (cm) | 7.1 | 2.2 | 0.7 | 1.67 e | — | 6.7 | — |
| tibia | |||||||
| length (cm) | 56.5 | 41.8 a | >14.9 | 25.5e,f | 36 | 49 | 50.5 |
| distal transverse width (cm) | 14 | 6.3 a | — | 3.8 e | — | 11.3 | 14.5 |
| pedal phalanx 2.II | |||||||
| length (cm) | 5.7 | — | 1.8 | 2.4g | — | 7.6 | — |
| distal transverse width (cm) | 1.7 | — | — | 0.6g | — | — | — |
| pedal phalanx 2.IV | |||||||
| length (cm) | 4.8 | — | — | 2.1g | — | — | — |
| distal transverse width (cm) | 4.7 | — | — | 0.8g | — | — | — |
| estimated body length (cm)h | 494.3 | 323.6 | 135 | 208e | 302 | 445 | — |
| estimated body mass (kg)i | 368 | 95 | 6 | 23.4e | 77 | 264 | — |
a
Broken.
b
Estimated.
c
V. mongoliensis IGM 100/25.
d
Height at level of rostral margin of preorbital fenestra.
e
V. mongoliensis IGM 100/986.
f
Tibiotarsus.
g
V. mongoliensis IGM 100/985.
h
Calculated on the basis of body length regression for paravians by Turner et al. (2007).
i
Calculated with the equation of Christiansen & Fariña (2004) in Turner et al. (2007).