Lithornithiformes

After Olson, 1985, and Feduccia, 1980, 1996

<==o †Lithornithiformes
   `--o †Lithornithidae
      |-- †Pseudocrypturus cercanaxius
      |-- †Paracathartes howardae
      |-- †Promusophaga magnifica Harrison & Walker, 1977
      `--o †Lithornis
         |-- †L. celetius
         `--+-- †L. plebius
            |-- †L. promiscuus
            |-- †L. nasi
            |-- †L. hookeri
            `-- †L. vulturinus

Reference(s):

Feduccia, A., 1980: The Age of Birds.
–Harvard University Press, Cambridge, Massachusetts & London, England, 1980, ix-196
Feduccia, A., 1996: The origin and evolution of birds.
–Yale University Press, New Haven and London, 1996, xii-420
Olson, S. L., 1985: The fossil record of birds. 79-239.
in Farner, D., King, J. & Parkes, K. (eds.), 1985: Avian Biology. vol VIII.
–Academic Press, New York, 1985