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

Figs. 7, 8, & 9, are varieties of the same species of fossil sponge (Scyphia articulata, of Goldfuss), from Switzerland.

Fig. 10. A spongite of a very peculiar form.

Fig. 11. A spongite investing a fossil shell (Nerita), from Faringdon.

Fig. 12, is an imperfect specimen of a Ventriculite (Ventriculites alcyonoides, of Mantell), from the chalk of Wiltshire.

Fig. 13. A calcareous spongite which has been immersed in dilute hydrochloric acid to show its structure.

Fig. 14. A pebble deriving its shape from a zoophyte apparently related to the Ventriculites (Spongites labyrinthicus, of Mantell). The aperture at the base has arisen from the decomposition of the process of attachment.

Fig. 15. A pebble enclosing part of the base of a Ventriculite; the circular spots on the large end are sections of the ramifications of the stirps or base of the zoophyte; for this figure and the following are drawn in an inverted position.

Fig. 16, is a similar fossil, split vertically, and showing the enclosed stem of the Ventriculite.