. Elements of geology : a text-book for colleges and for the general reader. Geology. 338 PALEOZOIC SYSTEM OF KOCKS. Of the Placoids we can not give figures of the forms, as these are not known; but their teeth and enormous spines are found (Figs. 435,436). Classification of Devonian Ganoids.âAs above described, Devonian Ganoids fall naturally into two groupsâviz., Lepido-ganoids (scale. Figs. 437^42.âNearest Living Allies of Devonian Fishes: 437. Lepidosiren. 438. Ceratodus Fosterii, x â & (after Gunther). 439. Polypterus. 440. Lepidosteus (Gar-Fish). 441. Amia (American Mud-fish). 442. C
. Elements of geology : a text-book for colleges and for the general reader. Geology. 338 PALEOZOIC SYSTEM OF KOCKS. Of the Placoids we can not give figures of the forms, as these are not known; but their teeth and enormous spines are found (Figs. 435,436). Classification of Devonian Ganoids.âAs above described, Devonian Ganoids fall naturally into two groupsâviz., Lepido-ganoids (scale. Figs. 437^42.âNearest Living Allies of Devonian Fishes: 437. Lepidosiren. 438. Ceratodus Fosterii, x â & (after Gunther). 439. Polypterus. 440. Lepidosteus (Gar-Fish). 441. Amia (American Mud-fish). 442. Cestracion Phillippi (a Living Cestraciont from Australia).. 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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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeology, bookyear1892
