What is all this talk of the Phytodinosauria ?, it would seem to me that you have been reading too much Bakkerian nonsense.. as far as any reputable palaeontologist is concerned this classification system is just a load of twaddle , another of good old Bob's attempts to be contentious !!. I suggest you get another book to read at bedtime !!.~ Gareth Dyke. gd4328@bristol.ac.uk