A Pictorial Atlas of Fossil Remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology."

by Gideon Algernon Mantell

Fig. 6. Portion of a fossil coral (Ceriopora), from Switzerland.

Figs. 8, & 10. These pebbles have the surface covered with casts of Clionites (Clionites Conybeari, of Mr. Morris.[30])

[30] Mr. Morris thus defines the generic character of these fossil bodies:—"Reticular masses of a more or less compressed globular, elliptical, or polygonal form; rugose and sometimes papillose; connected by minute tubuli or fibrillæ. Dendritical, dichotomous, or irregularly aggregated." Clionites Conybeari is characterized by "Cells irregular, somewhat polygonal, with one or more papillæ; surface finely tuberculated, connecting threads numerous." Note from Mr. Morris, April, 1850.

The fossils, however, do not appear to be the silicified sponge (Cliona) by which the ravages in the shell have been effected; they are merely casts of the cavities produced.

Fig. 9. Fragments of the radicle processes of attachment of some Apiocrinite or Lily-shaped animal in chalk; see description of [Plate LI.]

Fig. 14. A section of a siliceous nodule; probably the cellular appearance is inorganic: fig. 13, is a magnified section of the cells.

Plate XLI.