. The chain of life in geological time [microform] : a sketch of the origin and succession of animals and plants. Paleontology; Paleobotany; Paléontologie; Paléobotanique. 70 THE CHAIN OF LH-^E. Tlieir fortunes have thus been precisely the oi)posite of those of the lirachiopods, though in neither case is tlicre very marked elevation or deterioration in the individual animals. A very similar statement may be made as to the sea-snails, whether tlie. Ik;. Ci2.—Conitlnn'd /i/itii/tosiiitu (^\)n.). A Carboniferous Pteropod, curious winged snails (Pteropods) or the ordinary crawlers (Gas- tropods).
. The chain of life in geological time [microform] : a sketch of the origin and succession of animals and plants. Paleontology; Paleobotany; Paléontologie; Paléobotanique. 70 THE CHAIN OF LH-^E. Tlieir fortunes have thus been precisely the oi)posite of those of the lirachiopods, though in neither case is tlicre very marked elevation or deterioration in the individual animals. A very similar statement may be made as to the sea-snails, whether tlie. Ik;. Ci2.—Conitlnn'd /i/itii/tosiiitu (^\)n.). A Carboniferous Pteropod, curious winged snails (Pteropods) or the ordinary crawlers (Gas- tropods). The former come in early, and are represented by I'alajozoic forms finer than any now extant. Tlie genus Conularia (Fig. 62) presents some Silurian species six inches or more. 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 Dawson, J. W. (John William), Sir, 1820-1899. London : Religious Tract Society
Size: 2879px × 868px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea
