. Elements of geology : a text-book for colleges and for the general reader. Geology. 404 PALAEOZOIC SYSTEM OF ROCKS. Very recently a large number (thirty-four species referable to seven- teen genera) of small Amphibians have been brought to light by the Ohio Survey, and described by Cope. These are all, or nearly all, Laby- rinthodonts (Stegocephali, Cope). Some of them have the usual broad heads of Amphibians, but a large number are remarkable for their long, limbless, snake-like forms and pointed heads. These are evidently among the lowest form of Amphibians, and have strong affinities also
. Elements of geology : a text-book for colleges and for the general reader. Geology. 404 PALAEOZOIC SYSTEM OF ROCKS. Very recently a large number (thirty-four species referable to seven- teen genera) of small Amphibians have been brought to light by the Ohio Survey, and described by Cope. These are all, or nearly all, Laby- rinthodonts (Stegocephali, Cope). Some of them have the usual broad heads of Amphibians, but a large number are remarkable for their long, limbless, snake-like forms and pointed heads. These are evidently among the lowest form of Amphibians, and have strong affinities also with Ganoid fishes. Figs. 583 and 584 represent two of the Ohio Am- phibians. Some General Observations on the Earliest Reptiles.—With the pos- sible exception of the Eosaurus, all the reptiles of the Carboniferous were Labyrinthodonts. They are so called on account of the extraordi- nary labyrinthine structure of their teeth, produced by the intricate infolding of the surface and of the cavity. The same structure is ob- served in Ganoid teeth, but in a far less degree. The simple infold- ings of Ganoids (Fig. 449, p. 342) become intricate in Laby- rinthodonts (Fig. 585). The Labyrinthodonts were. 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 LeConte, Joseph, 1823-1901. New York : D. Appleton and Co.
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