| 释义 |
biostratigraphy, n.|ˌbaɪəʊstrəˈtɪgrəfɪ|
[ad. F. biostratigraphie (L. Dollo 1904, in Mém. de la Soc. Belge de Géol. XVIII. 213): see bio-, stratigraphy n.]
Stratigraphy based on information provided by fossils; (see also quot. 1928).
1928Jrnl. Paleont. II. 158 Paleontology is more nearly related to zoölogy and botany, on the one hand, and to geology on the other. For these two major divisions of paleontology Dollo proposed the two terms ‘Paleobiology’ and ‘Biostratigraphy’. 1945M. F. Glaessner Princ. Micropalaeont. i. 6 Recent work on the morphogeny of foraminifera..tends to bring micropalaeontology in line with the main trends of modern palaeontology, to which, among others, the names palaeobiology, palaeo-ecology, biostratigraphy have been applied. 1969[see lithostratigraphy s.v. litho-]. 1975Nature 18 Sept. 209/2 The Vendian and Yudomian are of similar age and the detailed biostratigraphy is uncertain, so that it is hard to say precisely which stock, calcareous or agglutinated, is the older. 1982J. P. Kennett Marine Geol. iii. 87 Quantification in geology requires a single numerical time scale resulting from the integration of stage stratotype information, biostratigraphy, paleomagnetic stratigraphy, and radiometric dating.
Hence ˌbiostraˈtigrapher n., an expert in or student of biostratigraphy; ˌbiostratiˈgraphic, ˌbiostratiˈgraphical adjs.; ˌbiostratiˈgraphically adv., in biostratigraphic terms, as regards biostratigraphy.
1928Jrnl. Paleont. II. 158 (heading) The biostratigraphic aspect of micropaleontology. 1950Biostratigraphic [see lithostratigraphic s.v. litho-]. 1953Bull. Amer. Assoc. Petroleum Geologists XXXVII. 2409 There are those cases in which the structural details involving thick, lithologically indivisible sequences can be unraveled only through detailed mapping of biostratigraphically defined units. 1958Bull. Geol. Soc. Amer. LXIX. 99 (heading) Some biostratigraphical concepts. Ibid., The biochronological standard, based for each period on biostratigraphically important groups of fossils, is known as the orthochronologic standard. Ibid. 112/2 Modern biostratigraphers. 1969Bennison & Wright Geol. Hist. Brit. Isles ii. 25 The variation in the age of a diachronous deposit is presumed from its relation to a biostratigraphical time scale (a sequence of faunas). 1970Earth-Sci. Rev. VI. 275 A biostratigraphic unit is a body of rocks which is delimited from the adjacent rock masses on the basis of unifying contemporaneous palaeontological characteristics (i.e., fossils deposited contemporaneously with the strata in which they occur). 1977A. Hallam Planet Earth 213 One of the main problems of Triassic biostratigraphers has been the lack of a marine rock succession in which there is unambiguous fossil evidence of an unbroken sequence of rocks from Permian through to Triassic. 1985Times 22 Jan. 16/7 By 1948 White had established that the ostracoderms in the Welsh borderland could be used to correlate and age the rocks. This was the first time that such a biostratigraphic scheme had been achieved. 1988Nature 4 Feb. 395/3 The Cenozoic is far better known biostratigraphically and palaeontologically than any other comparable interval since the opening of the Cambrian. |