 | 1901 - 1078 Seiten
...necessity of a knowledge of the complete faunas for purposes of correlation. 373 Beecher (Charles E.). Outline of a natural classification of the trilobites. Am. Jour. Sci., 4th ser., vol. iii, pp. 89-106, and 181-207, pi. iii, 1897. Reviews previous classifications and describes... | |
 | 1902 - 744 Seiten
...conclusively that there is little basis for the terms "an upper" and "a lower Ilamiltonian fauna" unless these terms are used to signify that it is possible...composition of the fauna, whether the rock is above or 'xslow the Encrinal bed. ••unless" In third Una last, read whea^ CHAPTER VII. BIBLIOGRAPHY OF LITERATURE... | |
 | Fred Boughton Weeks - 1902 - 738 Seiten
...necessity of a knowledge of the complete faunas for purposes of correlation. 373 Beecher (Charles E.). Outline of a natural classification of the trilobites. Am. Jour. Sci., 4th ser., vol. iji, pp. 89-106, and 181-207, pi. iii, 1897. Reviews previous classifications and describes... | |
 | Herdman Fitzgerald Cleland - 1903 - 172 Seiten
...conchisively that there is little basis for the terms "an upper" and "a lower Hamiltonian fauna" unless these terms are used to signify that it is possible...of a natural classification of the trilobites. Am. Jonr. Scl., 4th series, vol. 3. 1897. Larval stages of trilobites. Am. Geol., vol. 16, 1895. Development... | |
 | Geological Survey (U.S.) - 1903 - 364 Seiten
...conclusively that there is little basis for the terms "an upper" and "a lower Ilamiltonian fauna " unless these terms are used to signify that it is possible...composition of the fauna, whether the rock is above or 'jelow the Encriual bed. from Seat, read when. CHAPTER VII. BIBLIOGRAPHY OF LITERATURE USED IN THE... | |
 | Fred Boughton Weeks - 1902 - 1084 Seiten
...in the Black Hills, South Dakota. Am. Geol., vol. xviii, pp. 31-33, 1896. 313 Beecher (Charles E.). Outline of a natural classification of the trilobites. Am. Jour. Sci., 4th ser., vol. iii, pp. 89-106, and 181-207, pi. iii, 1897. Reviews previous classifications and describes... | |
 | 1902 - 982 Seiten
...conclusively that there is little basis for the terms "an upper" and "a lower Hamiltonian fauna " unless these terms are used to signify that it is possible...composition of the fauna, whether the rock is above or 'jelow the Encrinal bed. CHAPTER VII. BIBLIOGRAPHY OF LITERATURE USED IN THE PREPARATION OF THIS PAPER.... | |
| |
... all or takes place very seldom, and that it makes little difference how much time elapses so long as the conditions of environment remain unchanged. (7) An analysis of the Hamilton faunas shows conclusively that there is little basis for the terms... 