During the game, three more Allosaurus appear, even though all of the areas are closed off, so where did they come from?
The lake in the volcano crater reflects the objects around it, but the water pools on the plain only reflect the sky, nothing else.
The narrator claims that many people have suggested that the widened area in Stegosaurus' spinal cord acted as a "second brain". While this is true, the narrator doesn't point out that this theory has been thoroughly rejected by scientists, making it seem like the game is reinforcing this incorrect notion.
If you walk past dying or dead Allosaurus, their bodies disappear and their teeth remain floating in the air. If you walk back, their bodies suddenly reappear.
Some plants in the forest and in a few other places are floating in the air. The developers were aware of some of these but chose not to fix them for the final release.
There are strange green smudges floating in the air around shrubs due to the textured images of the leaves not being cropped properly.
The animals and plants you need to find are only recognized in specific areas. For instance, if you go to the dried up riverbead and find the Allosaurus eating the dead Diplodocus, the game will recognize neither as actual finds. Only if you go near the living Diplodocus and other Allosaurus does the game recognize them and put them into the inventory.
The narrator describes certain Allosaurus as being juveniles and having smaller, duller crests, even though all of the Allosaurus look exactly the same.