So today it’s time to take a stab at the dinosaurs. All three of the ‘early’ species united by Owen into his Dinosauria are represented. A pair of squat and skulking Iguanodon with spiky noses and rather graviportal stances (i.e. they look really fat). Hiding in the background (those damned trees meant I never got a shot of the head) is an enormous and spiky Hylaeosaurus. Finally there is the humped Megalosaurus prowling around and making its way towards the unsuspecting (and apparently blind, coz it’s really not that far away) herbivores.
All three rather suffer from being enormous and ‘overstuffed’ by modern standards, but of course back then there was very little to go on, and Owen’s ideas ruled the day, and certainly where these were concerned. Even so, some of the features are a bit odd. Hylaeosaurus clearly has some plates as well as spikes on the slab, but there’s no sign of them on the models and while obviously Megalosaurus it more than a bit scaled up the known legs and pelvis material simply wasn’t big enough to warrant an animal that size. But that’s not really the point of these, so I’ll shut up and let you enjoy them.
Dave Hone's Archosaur Musings 
Dave,
I’m sure I read somewhere that the head of Hylaeosaurus was deliberately tucked away because of the uncertainty of its shape. This is a pretty crazy bit of trivia, of course, given how little was known about the life appearance of these animals in the mid-1800s. I’m not sure I really believe it myself: any ideas if it’s true?
Kurt beat me to mentioning about the fibreglass head but the story about covering it up holds water, as one or two of the other models were similarly partially concealed due to a lack of knowledge. I think the Mosasaurus model doesn’t even have the rear half of its torso and was put into relatively deep water to hide this.
Perhaps with the water being shallower Dave may have some revealing photos to show us in the next day or so.
Its pretty cool how, basically at the start of the idea of Dinosaur, people wanted to make a “Jurassic Park”, instanced here.
Googling led me to this quote “Hylaeosaurus – the head is actually a fibreglass replica of the original which is currently in front of the Tourist Information Office.” I’m not sure that explains why the replica would be hidden though.