The above paper was published in Annals of Science volume 61 (2004), 187–211. It contains an error on p. 206, footnote 69. The correct footnote 69 should read:
69A. Darlow to J. B. Hatcher, 30 November 1900, Hatcher Papers, Section of Vertebrate Paleontology, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania.
Taylor & Francis apologizes for this error.