Wow, there are some major issues here. To many inconsistencies. The special effects, at times, were absoluitely horrible. Especially the scene when the Col. was standing with the father getting ready to look over their camp. Wow, very 80's like.
Also, they made it very clear that this was a new time line, that they could not find the drone they sent through. Ok, so they send a probe through that they can communicate with regardless of how long it is there. Ok, but they don't hear anything from the probe. So their first thing is, great its in a whole new timeline, start sending people. Really? What if the probe was destroyed because the portal appears inside a volcano, or on the moon, geez, your first response is to send people through when you DON'T hear from a probe??
Also, they make it very clear this is a different timeline. Fine. They state, very clearly, they cannot communicate with the probe they sent that is sitting right there. Fine. But then a few scenes later the Col. says he can communicate with Hope Plaza but isn't ready yet. How? The previous comment that they can possibly communicate with them when the portal is open is not valid because they can't communicate with the probe, they already said that
The whole weird writting thing was very intriguing, until you watch the previews then they give it away.
Also, I don't care how powerful a dinosaur is, when you shoot it with an automatic rifle, it is going to die. Not stand back up, not continue to attack. It will die, it is a just a flesh and blood animal that is very vunderable to automatic weapons just like everything else. This whole unloading clip after clip and the dino keeps coming is lame and just show how highly speilberg thinks of his beloved dinosaurs. Those dinos would be shredded to pieces. they don't have kevlar skin.