Biguanodon MK.II

Another Wessex formation scale, gawrsh...

Yes, indeed. I wondered how the largest Wessex terrestrial carnivore, Neovenator, would fare against the largest Iguanodont, I.bernissartensis. A recent study (2017) has concluded that Delapparentia, a giant Spanish Iguanodont, is most likely a large Iguanodon bernissartensis. So using the material from the giant, I got an estimated length of around 9.5 -10 metres in length. For the largest Neovenator specimen, I got an estimated length of around 7.6 metres long. 

Iguanodon silhouette based on Scott Hartman's skeletal

Edited: Random got a more precise (and smaller) estimate