Palaeos		Pterygota
Arthropoda		References

Pterygota: References

INSECTA
|
`--PTERYGOTA
   |--Rhyniognatha  
   `--+--Palaeodictyopteroida 
      |--Ephemeroptera
      |--Odonatoptera
      `--NEOPTERA

Boudreaux, H. B. 1979. Arthropod Phylogeny with Special Reference to Insects. New York, J. Wiley.
Paleoptera - phylogeny note

Engel, MS & DA Grimaldi (2004), New light shed on the oldest insect.  Nature 427: 627-630.  

D. Grimaldi & M. S. Engel 2005. Evolution of the Insects. xv + 755 pp. Cambridge, New York, Melbourne: Cambridge University Press.
Paleoptera - phylogeny note

Hennig, W. 1981. Insect Phylogeny. New York, J. Wiley.
Paleoptera - phylogeny note

Hovmöller, R., T. Pape, and M. Källersjö. 2002. The Palaeoptera problem: Basal pterygote phylogeny inferred from 18S and 28S rDNA Sequences. Cladistics 18:313-323.
Paleoptera - phylogeny note

Kristensen, N. P. 1975. The phylogeny of hexapod "orders". A critical review of recent accounts. Zeitschrift für zoologische Systematik und Evolutionsforschung 13:1–44.
Paleoptera - phylogeny note

Kristensen, N. P. 1991. Phylogeny of extant arthropods. Pages 125-140 in Insects of Australia: A Textbook for Students and Research Workers. Volume I. Second Edition. I. D. Naumann, P. B. Carne, J. F. Lawrence, E. S. Nielsen, J. P. Spradberry, R. W. Taylor, M. J. Whitten and M. J. Littlejohn eds. Carlton, Victoria, Melbourne University Press.
Paleoptera - phylogeny note

Wheeler, W. C., M. Whiting, Q. D. Wheeler, and J. M. Carpenter. 2001. The phylogeny of the extant hexapod orders. Cladistics 17:113-169.
Paleoptera - phylogeny note