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. 12. "A patch of square scales of a fish from Dorsetshire."—Mr. Parkinson. These evidently belong to a Lepidoid fish (Dapedius), whose remains are common in the Lias;[63] perfect specimens are often obtained. The British Museum contains some beautiful examples of this fossil fish.

[63] Wonders of Geology, vol. ii. p. 529.

Figs. 14, & 15. A curious fossil bivalve, from the Devonian strata of the Eifel. The flat valve is shown in fig. 14; and the deep conical valve in fig. 15; a, tooth in the posterior margin; b, a part of the surface magnified, to show its cellular structure. The species is Calceola sandalina, of Lamarck.

Fig. 16. A species of Spirifer; a, medial convexity of the upper valve; b, the triangular foramen at the beak.

Fig. 17. Spirifer (S. cuspidatus, of Mr. Martin), from the Mountain limestone of Derbyshire.

Fig. 18, represents a common appearance in certain chalk flints. Although I have examined hundreds, and some in which the form was more definite than in the specimen figured, I am not able to offer any probable suggestion as to their origin, should they be organic bodies, of which there is much doubt.

Fig. 19. "Coronulites diadema."—Mr. Parkinson. Probably a species of Balanus, from a tertiary deposit.

Fig. 20. Cast of one of the shells of a bivalve (Pentamerus), from the Wenlock limestone of Dudley.

Plate LXVIII.