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  1. Status of the pachypleurosauroid Psilotrachelosaurus toeplitschi Nopcsa (Reptilia, Sauropterygia), from the Middle Triassic of Austria / Olivier Rieppel --.
    Publication info: [Chicago, Ill.] :Field Museum of Natural History,1993.
  2. Fieldiana.
    Publication info: [Chicago] :Chicago Natural History Museum,1945-.