Because it wouldn't be a sci-fi blockbuster without scientists debunking it on Twitter, Jurassic World's first trailer has provoked the ire of dinosaur nerds over the anatomy of its CGI animals.

First, My Beloved Brontosaurus author Brian Switek took issue with the film's (fictional) GM dinosaur's thumbs.

Then there was a zoologist irked by the distinct lack of feathered-dinosaurs.

And forked tongue-tips. Where are the forked tongue-tips Hollywood?

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It wasn't just the dinosaurs annoying people, even the apparent confusion of mosquitos and crane flies caused angry typing.

• Read more: Jurassic Park is back in business (+trailer)

Released a couple of days early, the trailer opens on a boy going off to visit the titular adventure park, which offers safari rides and Seaworld-esque displays.

Things soon go south though, when a genetically-modified dinosaur breaks out of its enclosure, leaving only park ranger Chris Pratt and his dazzling jaw-line to save the day.

Bryce Dallas Howard, Ty Simpkins and Nick Robinson join Chris Pratt in the reboot, which is directed by Colin Trevorrow.

On the possibility of sequels, Trevorrow said recently: "We wanted to create something that would be a little bit less arbitrary and episodic, and something that could potentially arc into a series that would feel like a complete story."

Jurassic World

opens in cinemas in 2015.

- Independent