. Annals of the New York Academy of Sciences. Science; Science -- New York (State). i;g ANNALS NEW YORK ACADEMY OF SCIENCES uniform climates are seen in the early Carboniferous, in the Jurassic, mid-Cretaceous and Eocene. Now the base-leveling and overflow con- ditions are obviously favorable to the expansion and groT\i:h of marine life, especially of the littoral and shallow seas. The conditions of com- plete emergence of the continents and restriction of the littoral life to the steep and narrow border of the continental shelf will be unfavorable and will tend to what Chamberlin calls restri
. Annals of the New York Academy of Sciences. Science; Science -- New York (State). i;g ANNALS NEW YORK ACADEMY OF SCIENCES uniform climates are seen in the early Carboniferous, in the Jurassic, mid-Cretaceous and Eocene. Now the base-leveling and overflow con- ditions are obviously favorable to the expansion and groT\i:h of marine life, especially of the littoral and shallow seas. The conditions of com- plete emergence of the continents and restriction of the littoral life to the steep and narrow border of the continental shelf will be unfavorable and will tend to what Chamberlin calls restrictive evolntion of Fig. 2.—The southern continents, south polar projection Ocean depths of 100-1000, 1000-2000, and over 2000 fathoms indicated by progressive shading. Less than 100 fathoms unshaded. The sicep margins of the continental shelf are indicated by hachures. The isolation of the southern continents is in contrast to the unity of the northern hind areas. Conversely on land, the great emergence of the continents will tend to expansional evolution and cosmopolitan faunas, while their partial over- flow and isolation will tend to the restriction of land migration and the development of provincial faunae. EFFECTS OF ALTEIINATIONS OF ELEVATION AND CLIMATE UPON EVOLUTION OF TERRESTRIAL FAUNAS Associated with the isolated continents, we have moist tropical uni- form conditions of climate, and to this the provincial land fauna? of. 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 New York Academy of Sciences; Casey, Thos. L. (Thomas Lincoln), 1857-1925; Van Ingen, Gilbert, 1869-; Poor, Charles Lane, 1866-; Hovey, Edmund Otis, 1862-1924; Tower, Ralph W. (Ralph Winfred), 1870-1926. New York, New York Academy of Sciences
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1879
