Note 80 — Chapter V
Reading edition
De Lapparent, C. Rd. Ac. Sc., 136, 1903, pp. 1, 118; Bather, Geol. Mag., [5], 1, 1904, p. 292.
The Eocene fossils from Sokoto and Jega are similar to those collected by Col. Elliot and Capt. Lelean from the Sokoto frontier, of which accounts have been published by Dr. F. A. Bather (Geol. Mag., 1904, p. 292, Plate XI) and by Mr. R. Bullen Newton (G. J., XXIV, 1904, p. 522), who regard them as of Middle Eocene age. The fossils consist principally of echinoids and internal casts of mollusca. The latter are not sufficiently well preserved for exact determination.
From Sokoto numerous examples of Hemiaster sudanensis (Bather were obtained, and also specimens of Lucina and gasteropods. At Jega Hemiaster sudanensis is also abundant, and a portion of Plesiolampas (probably P. Sahara, Bather) was obtained. The mollusca belong to the genera Nautilus, Turritella, Voluta, Cardium, Lucina, Ostrea, etc.
(H. W.)