Note 88 — Chapter XIII · SAUROPSIDA.
Reading edition
See H.G. Seeley, On the Organisation of the Ornithosauria, Journ. Linn. Soc. (Zoology) vol. XIII. p. 84. K.A. Zittel, Ueber Flugsaurier aus dem lithographischen schiefer, Palaeontograph. XXIX. p. 49.