Factual error: There is no way a 2001 phone's tiny speaker could be heard a hundred meters away in the belly of a dinosaur or later buried in a mound of dino dung.
Factual error: When they find the camcorder and discover the battery is dead, Udesky takes the batteries from his Maglite, and they magically work in the camcorder.
Answer: While the movie doesn't explain this, it most certainly wasn't a dinosaur (since a carnivorous dinosaur would eat him). However, in Jurassic Park Adventures: Survivor, he dies from internal injuries due to the rough "landing".
Bishop73