Table 1

Comparison of cranial and postcranial elements of selected dromaeosaurid taxa.

Austroraptor cabazai MML-195Unenlagia comahuensis MCF PVPH 78Buitreraptor gonzalezorum (Makovicky et al. 2005)Velociraptor mongoliensis (Barsbold & Osmólska 1999; Norell & Makovicky 1997, 1999)Deinonychus antirrhopus MCZ 4371Achillobator giganticus (Perle et al. 1999)Utahraptor ostrommaysi (Kirkland et al. 1993)
maxilia
length (cm)39a10b10.9c39
heightd (cm)8.51.83.5c11.6
height/length ratio (%)21%18%34%c29%
tooth count2411c11
humerus
length (cm)26.226.5 b13.525.4
least mid-shaft diameter (cm)2.21.70.6
femur
length (cm)5636.814.523.8e34.450.5
least mid-shaft diameter (cm)7.12.20.71.67 e6.7
tibia
length (cm)56.541.8 a>14.925.5e,f364950.5
distal transverse width (cm)146.3 a3.8 e11.314.5
pedal phalanx 2.II
length (cm)5.71.82.4g7.6
distal transverse width (cm)1.70.6g
pedal phalanx 2.IV
length (cm)4.82.1g
distal transverse width (cm)4.70.8g
estimated body length (cm)h494.3323.6135208e302445
estimated body mass (kg)i36895623.4e77264
  • 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).