Films: 100 Million B.C (2008)
Alias: Apatosaurus, Deinosuchus, Deinonychus, Carcharodontosaurus, Pteranodon
Location: Jungle/Lake/Mountains/Civilized Area
Height/Weight: Ranges from that of average humans to that of a large building.
Summary: Whoever put it in the collective human race's head that there needs to be time travel in our lives ought to be sacked immediately. All it does it mess with continuity, offer freebies to writers after killing their characters, and bring back incredibly dangerous animals.
History: At some point, an expedition from the early 20th century got lost in the ancient continent of Laurasia during the early Cretaceous. So now, a modern team of NAVY soldiers must travel back 112,000,000 BC (HEY, WAIT A MINUTE!) in order to rescue them. Unfortunately, due to the effort, they end up bringing back an oversized Carcharodontosaurus with them. Now, it's rampaging across L.A., and only time travel can stop it.
Notable Kills: Nothing special.
Final Fate: After causing considerable damage to the rural area, the Carcharodontosaurus is sent back after being fed a time machine. We later see that it got fused with a mountain. Ouch.
Weakness: Anything conventional.
Scariness Factor: 2-Every effect here is laughable. Even the practical ones are guaranteed to make you wonder which Halloween shop they got the props from. The Carcharodontosaurus is the worst offender, looking like he purchased the leg version of Anchor Arms and being the most poorly rendered thing in the film.
Trivia: -Carcharodontosaurus was an African theropod whose name means "sharp-toothed lizard". Some say it was even larger than the T.Rex, and often butted heads with its larger neighbor, the Spinosaurus.
-Laurasia one of two supercontinents that made up Pangea millions of years ago. The other one was Gondwana. However, Pangea wasn't around after the Triassic ended, so we have ourselves a bit of an anachronism.