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. 14. Posterior part of a trilobite with a caudal style or process, (Asaphus caudatus,) from the Wenlock shale, Dudley.

Fig. 15. A nodule of ironstone from Coalbrook Dale, in which is imbedded a small crustacean allied to the recent King Crab or Limulus; a genus abundant in the seas of India and America.[65] (Limulus trilobitoides, of Dr. Buckland. Bellinurus bellulus, of Mr. König.)

[65] Medals of Creation, vol. i. p. 550.

Plate LXIX.

PLATE LXIX.

Fossil Fishes and Reptiles.

Fig. 1. "A fossil body resembling part of a Tortoise, from Gloucestershire."—Mr. Parkinson. This specimen is probably one of the mandibles of a remarkable extinct genus (Ceratodus) of fishes, whose dental organs, like those of the recent Chimæra, consisted of consolidated plates instead of separate teeth; each side of the jaw was formed by one of these mandibular processes; the upper margin is deeply undulated. The bone-bed of the Lias at Aust Cliff near Westbury, Somersetshire, is rich in these remains.