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Keywords from Image Description:
PZSLPage. Procolophon trigoniceps Procolophon trigoniceps Owen Broom Huxley Seeley en Hip joint of mammallike reptiles Il ilium Is ischium Pu pubis Proceedings of the Zoological Society of London org vol issue org page page published Broom text PDold PZSL Hip bone Evolutionary zoology Reptiliomorpha Procolophon Anomodontia