Published online by Cambridge University Press: 01 May 2009
Of the existence of Annelides during the Silurian period we are almost as uncertain as of the existence of plants. Indeed, we might reasonably doubt whether any Silurian fossils can with certainty be referred to this class.
1 See “Siluria,” 1867, p. 201 and p. 513.—Edit.
2 Owen, Palæontology, 1860, p. 40.
3 W. H. Baily, Charac. Brit. Foss., part I., p. xix.
4 Nature, Dec. 30, 1869, p. 248.