[quote=True Self]
A Spell caster or Conjurer could have brought the dinosaurs into existence during the medieval period. It could just be an experimental time spell that went wrong and brought all prehistoric creatures from the past into the present. I'd prefer it if the role play started out with the dinos already being there and the truth to how it happened and who was responsible is discovered later.
[/quote]

Ah yes, I'd already planned for the RP to start a while after the dinos had been summoned, and yeah, it was implied that all of it was caused by an experimental spell that went haywire.

I do like the idea of uncovering the truth of it all being worked into the plot, though. I'll add it to the list of plot-starters and we can see where everyone wants to lead the story from there. ^^