单词 | graptolite |
释义 | graptoliten. Palaeontology. ΘΚΠ the world > the earth > structure of the earth > constituent materials > stone > a stone > [noun] > other stones loys1295 anthracites1535 rockstone?1545 stone-glass1585 milkstone1598 fieldstone1649 pebble1669 ballstone1726 grain-stone1756 knablick1757 found stone1800 sitfast1809 graptolite1838 bumble1839 hardhead1849 chock1894 chockstone1894 1838 Penny Cycl. XI. 363/1 The Florentine, or ruin marble, the dendritical ramifications on many limestones, and the moss-like forms in agates, &c., were ranked [by Linnæus] as Graptolites. 1847 in J. Craig New Universal Dict. 2. A fossil zoophyte of the genus Graptolites (or Graptolithus) or of the family of which this genus is the type.The graptolites are known from their impressions on the surface of hard shales, resembling markings with a slate pencil. Some suggest the form of a quill pen. ΘΚΠ the world > animals > invertebrates > zoophyte > [noun] > fossil zoophyte > of genus Graptolites graptolite1841 1841 Trans. Geol. Soc. (1842) 2nd Ser. 6 558 Graptolites were found at Robleston..in calcareous shales. 1872 H. A. Nicholson Man. Palæontol. 11 If the Graptolites belong to certain genera, we may be sure that we are dealing with lower Silurian Rocks. Derivatives graptoˈlitic adj. of or pertaining to graptolites; containing graptolites. ΘΚΠ the world > animals > invertebrates > zoophyte > [adjective] > of or relating to graptolites graptolitic1843 1843 J. E. Portlock Rep. Geol. Londonderry 231 Another graptolitic bed in Fermanagh. 1849 R. I. Murchison Siluria v. 96 The supposed fucoids..belong to graptolitic or other zoophytes. 1880 Ramsay in Times 26 Aug. 5/3 The Lower Silurian graptolitic rocks at Corswall Point in Wigtonshire. This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022). < n.1838 |
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