Body shapes of Spinosaurus aegyptiacus and sailfish. Circumferences
were drawn in line with the skeleton published in Ibrahim et al.
(2014), and averaged from images in the
internet. (a) Spinosaurus in resting or stalking posture. (b)
Sailfish with sail raised. (c) Spinosaurus swimming submerged. The
hind leg is shown in stroke position and the tail is shown extended with hypothetical
crocodile-like horny scales, improving the efficiency of the undulating