Consider this: millennia from now, a little fragment of your skull might be discovered in a pile of mud and some scientist will be left to draw conclusions about our entire civilization. That’s basically the situation with Oxalaia (and pretty much all ancient creatures).

From two partial skull bones, we know this about Oxalaia: it lived in Brazil during the late Cretacious, and it was absolutely massive. We’re talking 12 to 14 metres, and a weight of around 7 tonnes. That makes this carnivore the largest known theropod from the region.

Oxalaia thrived in tropical environments, and as a spinosaurid, it enjoyed a diet of mainly fish, but didn’t turn down an opportunity to crunch small dinosaurs and pterosaurs.