Monograph on the British fossil Echinodermata from the Cretaceous formations. - Wright, Thomas, 1809-1884.; Sladen, Walter Percy, 1849-1900.; Spencer, William Kingdon (London, Printed for the Palaeontographical society, 1864)
I. The Echinoidea. By T. Wright 1864-82.--II. The Asteroidea and Ophiuroidea. By W. P. Sladen and W. K. Spencer. 1891-1908.
Each plate preceded by leaf with descriptive letterpress.
Added t-p.: The Palaeontographical society.
"Appendix containing a list of the works referred to in the text": v. 1, p. xiii-xviii.
Keywords: Echinodermata, Fossil; Paleontology -- Cretaceous; Paleontology -- Great Britain