The card image says creature -- lizard, did they change it's type post release?
They've done a few cases of creature type errata before. A huge-scale "unification" that removed a lot of redundant/similar types (that they've... mostly just re-introduced or redoubled by this point), and a more minor one once Ixalan introduced Dinosaurs to correct creature types that obviously would have been Dinosaurs if they existed as a type when those creatures were printed. (Though they were pretty conservative with the latter.)
That's why I'm surprised they're printing something that looks and quacks like a Dinosaur but isn't a Dinosaur while Ixalan is still in Standard.