I understand that the Rebirth movie took a scene from the original Jurassic Park novel by Michael Crichton, that of the Rex chasing the boat where Grant, Tim and Lex are fleeing in the river and used it in Rebirth, but now that I saw the movie I noticed elements that reminded me of Crichton's second novel The Lost World, and here are some, the ones I could find, from the most noticeable to the most subtle:

• An island different from the others (replacing Sorna with Saint-Hubert so as not to contradict the canon of the films)

• An ambitious corporation that wants the DNA of creatures for its own benefit (Parker Genix instead of Biosyn, which was the antagonist of Camp Cretaceous and Dominion, and originally Rebirth Island would be Biosyn's, not InGen's)

•That Saint-Hubert, like Sorna in the book, uses geothermal energy to supply the facilities 

•At one point in the climax the survivors try to escape from the mutadons by taking refuge in the gas station store (similar to the novel but with the difference that there are two chases)

•There is an attack at night and instead of the mimetic Carnotaurus it is changed to the D Rex (it would have been a great opportunity to show them on screen) 

• The antagonist uses a red and white vehicle (a Jeep Wrangler in the novel used by Dodgson, King and Baselton and Krebs uses an electric vehicle more similar to those in the movies) and ends up being eaten by the carnivorous dinosaur in turn. 

•The survivors escape by boat similar to the end of the novel

I don't know if it was my imagination or not but in addition to the river scene with the T Rex extrapolated from the original novel, I also noticed that a large part of the plot has elements from Crichton's novel The Lost World