Fig. 113.—Terebratula digona.
The marine fauna included Reptiles, Fishes, Molluscs, and Zoophytes. Among the first were the Pterodactyle, and a great Saurian, the Teleosaurus, belonging to a family which made its appearance in this age, and which reappears in the following epoch. Among the Fishes, the Ganoids and Ophiopsis predominate. Among the Ammonites, Ammonites Humphriesianus, A. Herveyii ([Fig. 112]), A. Brongniarti, Nautilus lineatus, and many other representatives of the cephalopodous Mollusca. Among the Brachiopods are Terebratula digona ([Fig. 113]) and T. spinosa. Among the Gasteropoda the Pleurotomaria conoidea is remarkable from its elegant shape and markings, and very unlike any of the living Pleurotoma as represented by P. Babylonia ([Fig. 114]). Ostrea Marshii and Lima proboscidea, which belong to the Acephala, are fossil Mollusca of this epoch, to which also belong Entalophora cellarioides, Eschara Ranviliana, Bidiastopora cervicornis; elegant and characteristic molluscous Polyzoa. We give a representation of two living species, as exhibiting the form of these curious beings. ([Figs. 115] and [116].)
Fig. 114.—Pleurotoma Babylonia. (Recent.)
The Echinoderms and Polyps appear in great numbers in the deposits of the Lower Oolite: Apiocrinus elegans, Hyboclypus gibberulus, Dysaster Endesii represent the first; Montlivaltia caryophyllata, Anabacia orbulites, Cryptocœnia bacciformis, and Eunomia radiata represent the second.
Fig. 115.—Adeona folifera.
(Recent Polyzoa.)