The Ornithocheirus from the episode Giant of the Skies (1999) has a brief cameo. Iguanodonts also appear, but they are vastly different and more lifelike than the Iguanodons form that episode.
In the original Time of the Titans (1999), it was theorized that the Sauropods may have laid their eggs through a fleshy tube, called an "ovipositor". Since there's is no fossil evidence to support this, here, they are simply shown crouching, with the eggs dropping to the ground.
According to the initial story drafts, Nigel Marven would have gotten caught and likely killed by the Sarcosuchus. In the finished episode, the Sarcosuchus lunges at him just as it cuts to black.
Argentinosaurus is depicted with a short, blunt, rounded head, but later discoveries showed that it had a longer, more tubular skull.