Alternative phylogeny, after Jalil 1997

Alternative phylogeny, after "The Pterosaur Homepage"

<==o †PROTOROSAURIA [Prolacertiformes]
   |-- †Protorosauridae
   `--+-- †Prolacertidae
      `--+-- †Tanystropheidae
         `?- †Megalancosauridae



Reference(s):

Jalil, N-E, 1997: A new prolacertiform diapsid from the Triassic of North Africa and the interrelationships of the Prolacertiformes. –Journal of Vertebrate Paleontology: Vol. 17, #3, pp. 506-525 Renesto, S., 1994: Megalancosaurus, a possibly arboreal archosauromorph (Reptilia) from the Upper Triassic of northern Italy. –Journal of Vertebrate Paleontology: Vol. 14, #1, pp. 38-52