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

PLATE LV.

Fossil Sea-Urchins, or Echinites.

Fig. 1. The shell of a Turban Echinite (Cidaris saxatilis, of Parkinson), broken in two, and each piece imbedded in the same fragment of flint. From Kent.

Fig. 2. A round Buckler Echinite (Echinodiscus (Clypeaster) subrotundus, of Parkinson), from Italy.

Fig. 3. The upper surface of an Echinite (Spatangites (Disaster, of Agassiz) ovalis, of Parkinson); from Scarborough.

Fig. 4. View of the upper, and fig. 5, of the lower surface of an Echinite, (Spatangus (Hemipneaster, of Agassiz) radiatus, of Parkinson,) from the cretaceous strata of St. Peter's Mountain, Maestricht.

Fig. 6. A small Echinite (Echinites (Nucleolites, of Leske) pyriformis, of Parkinson), from the cretaceous strata of Maestricht.

Fig. 7. A small Echinite of a different genus (Echinites (Cassidulus, of Lamarck,) Lapis cancri, of Parkinson), from Maestricht.