. The ancient life-history of the earth; a comprehensive outline of the principles and leading facts of palæontological science. Paleontology. Fig. 199.—HippJirites Toucasiana. A large individual, with two smaller ones attached to it. Upper Cretace- ous, South of Fig. 200. — Voliita elongata. White Chalk. zoic JVerincea, we meet with examples of such modern types as Turritella and JVatica, the Staircase-shells {Solarium), the Wentle-traps {Scalaria), the Carrier-shells (F/ionis), &c. To- wards the close of the Cretaceous period, and especially in such transitional strata as the Ma
. The ancient life-history of the earth; a comprehensive outline of the principles and leading facts of palæontological science. Paleontology. Fig. 199.—HippJirites Toucasiana. A large individual, with two smaller ones attached to it. Upper Cretace- ous, South of Fig. 200. — Voliita elongata. White Chalk. zoic JVerincea, we meet with examples of such modern types as Turritella and JVatica, the Staircase-shells {Solarium), the Wentle-traps {Scalaria), the Carrier-shells (F/ionis), &c. To- wards the close of the Cretaceous period, and especially in such transitional strata as the Maestricht beds, the Faxoe Limestone, and the Pisolitic Limestone of France, we meet with a number of carnivorous (" siphonostomatous") Uni- valves, in which the mouth of the shell is notched or pro- duced into a canal. Amongst these it is interesting to recognise examples of such existing genera as the Volutes (Fo/ufa, fig. 200), the Cowries {Cyp7'cea), the Mitre-shells {Mitra), the Wing - shells {Strombus), the Scorpion - sliells {Fkroceras), Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nicholson, Henry Alleyne, 1844-1899. Edinburgh, London, Blackwood
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Keywords: ., bookaut, bookcentury1800, bookdecade1870, booksubjectpaleontology
