I'm pretty sure they have been listed on this page two or three times already; I'm sure if you went back a few pages you'd find it.
From memory though, the novel scenes are:
*Cera telling the others to leave Baby Spike behind, as "Spiketails eat a lot", but the others ignore her and get him to follow by using a stick with berries on it as a lure.
*The encounter of two racist herds of dinosaurs who are unwilling to work together to survive (one herd has water, but no food, while the other has food, but no water). Cera remarks this is foolish.
*Littlefoot coming up with the plan to kill Sharptooth so that he won't find the entrance to the Great Valley.
A complete list of scenes also exists somewhere in this topic, but I don't remember which page. There's also my three pages about the soundtrack, which are useful in discerning what's missing and what's been recut (for example the soundtrack still contains the musical cues that would have been used for the original ending); (
http://amcalmaron.deviantart.com/gallery/?offset=72#/d28x343), plus there's also this collation of stills and video clips of cut scenes; (
http://amcalmaron.deviantart.com/gallery/#/d41k8wf).
Have you visited these links before? I'm sure I sent you links to all the pages with info about the deleted scenes for help with your project to rewrite the first film!