From Anatomical and Zoological Researches: Comprising an Account of the Zoological Results of the Two Expeditions to Western Yunnan in 1868 and 1875 by John Anderson, 1878From the book The Sea Fishes of Southern Africa by James Leonard Brierly Smith, 1949Illustration from Annals of the Queensland Museum, 1905From The Rise of the Mammals, part of the American Museum of Natural History’s guide leaflet series, by George Gaylord Simpson (reprinted from Natural History, Volume XLIX, No. 2, February, 1942)Black girdled lizard illustration from Annals of the Queensland Museum, 1905White-beaked dolphin illustration from the book Mammals: 1860-1879 by Pierre Joseph van BenedenSkeleton of Hesperornis regalis, an extinct flightless bird, from Studies on the Structure & Development of Vertebrates by Edwin Stephen Goodrich, 1930From the booklet Stud Dog’s Care and Management by Capt. Will Judy, 1945:Three plates depicting parts of the Ganges river dolphin from Anatomical and Zoological Researches: Comprising an Account of the Zoological Results of the Two Expeditions to Western Yunnan in 1868 and 1875; and a Monograph of the Two Cetacean Genera Platanista and Orcella by John Anderson, 1878Ganges river dolphin and Irrawaddy dolphin from Anatomical and Zoological Researches: Comprising an Account of the Zoological Results of the Two Expeditions to Western Yunnan in 1868 and 1875; and a Monograph of the Two Cetacean Genera Platanista and Orcella by John Anderson, 1878Three plates showing the Irrawaddy dolphin from Anatomical and Zoological Researches: Comprising an Account of the Zoological Results of the Two Expeditions to Western Yunnan in 1868 and 1875; and a Monograph of the Two Cetacean Genera Platanista and Orcella by John Anderson, 1878From The American Naturalist, A Popular Illustrated Magazine of Natural History, Volume II, 1869