Update.

The pig-tusky creature in the Primeval trailer is apparently called a Kaprosuchus if anyone was interested. It's been nicknamed 'BoarHog' as... well you can guess what it looks/acts like...
More news soon... Hopefully!

New trailerr!!!! EPIC.

Hey sorry for the alteness if you've seen ti, but I've been away. Thank you so much to Kabilan to drawing my attention to this. It is a preview of Series 4 introduced by Andrew Lee-Potts, and it is epic. It features Lester, Becker, Abby, Conner, Jess and Matt, as well as the Dracorex from the last series, which seems to have escaped in the ARC. Then there's a Spinosaurus, a raptor and some kind of tusked dinosaur. It looks pretty amazing!

HERE IS THE EPIC TRAILER:

Have I got news for you?

Well, thank you very much to Kabilan for the link, a Spinosaurus is confirmed for series 4, and also confirmed was why Sarah is no longer on the team. She died on the rescue mission to get Conner, Abby and Danny back. Becker now blames himself for this. Whatta fail. XD
Gosh it's exciting, we're getting closer and closer to series 4 and I may explode at any moment!
Anywayys, here is the picture which this information came from: