Hostname: page-component-848d4c4894-x24gv Total loading time: 0 Render date: 2024-05-25T15:19:42.043Z Has data issue: false hasContentIssue false
  • English
  • Français

I.—On the Vertical Range of the Graptolitic Types in Sweden

Published online by Cambridge University Press:  01 May 2009

G. Linnarsson
G. Linnarsson
Affiliation:
Director of the Geological Survey of Sweden.
Get access Rights & Permissions [Opens in a new window]

Extract

Of the Swedish Graptolites up to this day but very little seems to be known in foreign countries. They merit, however, more attention than has hitherto been bestowed on them—chiefly perhaps because of the scantiness of the literature. The Graptolitic faunæ of Sweden have many analogies to those of other Silurian districts, and are therefore of great importance for the identification of the strata. An acquaintance with them is also required if one wishes to obtain a somewhat accurate knowledge of the vertical and horizontal range of the various types. A short account of them might therefore possibly have some interest even to an English geologist.

Type
Original Articles
Information
Geological Magazine , Volume 3 , Issue 6 , June 1876 , pp. 241 - 245
Copyright
Copyright © Cambridge University Press 1876

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

page 243 note 1 Though I do not think that Mr. Hopkinson has correctly interpreted the structure of the species referred by him to the genus Dicellograptus, they seem to form a very natural and well-defined group.

page 243 note 2 I should, however, think that the Moffat series, as defined by English geologists, includes also beds equivalent to the lower portion of the Swedish Upper Graptolitic Schists, which is characterized by Rastrites peregrinus, Graptolithus lobifer, and sagittarius, Climacograptus teretiusculus and Diplograptus palmeus, while in the upper portion Graptolithus priodon and Retiolites Geinitzianus are the prevailing species. [Mr Charles Lapworth has shown that the Moffat series is divisible into distinct groups, characterized by distinct species of Graptolites.—H.A.N.]

page 244 note 1 Angelin has erroneously, though with some hesitation, parallelized the Leptœna Limestone of Daleearlia with the Brachiopod Schists of Westrogothia and Ostrogothia, and therefore included also the latter in his Regio Harparum.