Table 1.

Frequency of abnormal presacral vertebral count among individuals of different species

Locomotory classification per taxonNo. of individuals with normal presacral vertebral countNo. of individuals with abnormal presacral count and no transitional L/S vertebraNo. of individuals with abnormal presacral count and transitional L/S vertebraTotal no. of individuals (N)
Carnivora
 Fast270 (99.6%)1 (0.4%)0 (0.0%)271
 Fast half-bound96 (95.0%)2 (2.0%)3 (3.0%)101
 Slow38 (74.5%)4 (7.8%)9 (17.6%)51
Mustelidae
 Fast half-bound96 (95.0%)2 (2.0%)3 (3.0%)101
 Slow25 (75.8%)2 (6.1%)6 (18.2%)33
Artiodactyla
 Fast158 (98.1%)2 (1.2%)1 (0.6%)161
 Slow63 (58.3%)12 (11.1%)33 (30.6%)108
Bovidae
 Fast134 (97.8%)2 (1.5%)1 (0.7%)137
 Slow21 (75.0%)2 (7.1%)5 (17.9%)28
Afrotheria (slow)15 (30.6%)12 (24.5%)22 (44.9%)49
Monotremata (slow)17 (51.5%)4 (12.1%)12 (36.4%)33