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Primitive Dinosaurian Characters



Hi there!
 
Can anyone please give me references for any papers who listed characters in support of the following things?:
 
--> Inclusion or exclusion of _Marasuchus_, _Eoraptor_, _Herrerasaurus_, and _Staurikosaurus_ in Theropoda, in Saurischia, and in Dinosauria (or in anything else within Dinosauria)
--> Inclusion and exclusion of _Pisanosaurus_ and _Lesothosaurus_ in Ornithischia and in Dinosauria
--> Monophyleticism (is that a word?) of Phytodinosauria (Sauropodomorpha and Ornithischia) and of Saurischia (Sauropodomorpha and Theropoda)
 
Thank you very much in advance.
 
Ciao!
-Grant
http://www.cyberus.ca/~sharding/grant