Table 2. Ranges of motion (ROMs) of each degree of freedom for Mussaurus and Crocodylus in the resting pose.
| Joint | Pronation (°) | Supination (°) | Total long-axis rotation (°) | Abduction (°) | Adduction (°) | Total ab/adduction (°) | Flexion (°) | Extension (°) | Total flexion/extension (°) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Mussaurus patagonicus | Glenohumeral | −25 | 25 | 50 | −25 | 40 | 65 | −35 | −70 | 35 |
| Elbow | −30 | 0 | 30 | −5 | 5 | 10 | 130 | 20 | 110 | |
| Wrist | – | – | – | −10 | 10 | 20 | 70 | −30 | 100 | |
| Metacarpo-phalangeal | – | – | – | – | – | – | 50 | −40 | 90 | |
| Interphalangeal | – | – | – | – | – | – | 70 | −25 | 95 | |
| Crocodylus johnstoni | Glenohumeral | −20 | 20 | 40 | −5 | 45 | 50 | 5 | −60 | 65 |
| Elbow | −20 | 8 | 28 | −5 | 5 | 10 | 110 | 15 | 95 | |
| Wrist | −10 | 30 | 40 | −30 | 5 | 35 | 40 | −60 | 100 |