^Palmer, D., ed (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 54. ISBN1-84028-152-9
^Fritsch, A. (1875). “Über die Fauna der Gaskohle des Pilsner und Rakonitzer Beckens”. Sitzungsberichtde er Böhemischen Gesellschaft der Wissenschaften. Prague. pp. 70–79
^Huxley, T. H.; Wright, E. P. (1867). “On a collection of fossil vertebrates, from the Jarrow Colliery, County of Kilkenny, Ireland.”. Transactions of the Royal Irish Academy24: 351–369.
^Baird, D. (1964). “The aistopod amphibians surveyed”. Brevoria: Museum of Comparative Zoology206: 1–17.