The size of the Mosasaur in JW (UPDATED WITH PICTURE)

Don't mean to sound rude, but Lioplaurodon was only about 7 meters. Walking with Dinosaurs did a little bit of an overestimate there... Also, the Mosasaurus in JW is too big. But, a size being wrong in the Jurassic Park franchise is nothing new. Seriously, they got the size wrong of every Theropod in the original Jurassic Park with the exception of the pelicans at the end. Anyways, nice post though, I do agree with your estimates.

Well firstly LIOPLEURODON is much much smaller than that and the Mosasaur certainly looks much bigger to me but if that's what you measured that's fine.

Thanks for sharing

But I doubt we can pin it on the Genetic Tampering.

It just wouldn't add up. 

Maybe its a Larger shark?

There's got to be some factor we're missing here, Or colin just got something SO IMPORTANT, Wrong...

@ Lord of Spinos, The Dilophosaur was a juvenile, the raptors were actually closer to large deinonychus or small Utahraptors, and the Tyrannosaur was the right size. Not sure what you mean.

An average Tyrannosaurus was about 11.5 meters, Rexy was about 14 meters. And they refered to the "Deinonychus" in JP as Velociraptors, so thats the wrong size for Velociraptor. Though I didn't know sbout the Dilophosaurus, I'll give you that one.

An average Tyrannosaur was actually around 12.1 meters to 14.2 meters. Tyrannosaurus has undergone an average size increase based on about 7 (admitabbly fragmentary) remains that would be sized around 15 meters. If you want I can give you a specimen list and even a couple references and papers. 

Interesting... I would love to see some.

You got it!

Devil's Rex

Unnamed Specimen in Mexico

"Celeste"

Specimen UCMP 118742

Specimen UCMP 137538 (most fragmentary of all these)

Peck's Rex

Unnamed Specimen in Texas

Undescribed Specimen in Utah

This 12 ft shark was the same length as the mosasaur's head, so that says something right there. I'd put the mosasaur in the 60-80 ft range. M. hoffamani and Tylosaurus are some of the biggest mosasaurs we know and they were around 40-50 ft long.

Carno, are you saying its actually the right size? Because I had a similar feeling it was about right, maybe a little bit bigger.

Hmm. Your math is sound. I just checked. Good! Its not too blatantly large. 

I agree that it is too big

with that size, the mosasaurus is the worst creation that JW scientist ever made (even worst than diablo rex)

T.rex was much smaller than 15 m, from what we have largest T.rex specimens stopped between 12 and 13 m ('Sue' is 12.3 m long and MOR008 was maybe slighty longer than 'Sue', but more gracile and therefore lighter). 

I've read that Horner said that that Mosasaurus was based on upper Mosasaurus size estimates.

Maybe this will help: