 American Fauna, No. 5, August, 1891) I went a step further, defining the treeless parts of the "Neutral or Transition zone," and characterizing an " Upper Sonoran zone," as distinguished from the Lower or True Sonoran ; but nothing was said as to the...  Proceedings of the Biological Society of Washington - Page 22by Biological Society of Washington - 1893Full view - About this book
 | 1892 - 790 lehte
...is the western equivalent of the "Alleghanian Fauna" of the East. In a subsequent publication (Forth American Fauna, No. 5, August, 1891) I went a step...the Alleghanian of the East, but also that the Upper Konoran is the equivalent of the Carolinian, and the Lower Sonoran of the Austro-riparian, and that... | |
 | 1895 - 634 lehte
...affinities and transcontinental character of the several zones and areas : The time has now arrived when it is possible to correlate the Sonoran zones...Boreal zones, and as was intimated in the case of the Nentral or Transition Zoue. It can now be asserted with some confidence, not only that the Transition... | |
 | Smithsonian Institution. Board of Regents - 1893 - 778 lehte
...Carolinian fauna " is sufl'used with southern forms, and the Alleghaniau seems to be neutral ground" (Ibi<L, p. 18), thus implying that the "neutral" or pineplateau...is the equivalent of the Carolinian, and the Lower Souoran of the Austro-riparian, and that each can be traced completely across the continent. Thus,... | |
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