III.—On Scottish Monograptidæ
- 1 December 1876
- journal article
- research article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 3 (12) , 544-552
- https://doi.org/10.1017/s001675680015575x
Abstract
This genus was founded by Mr. Carruthers to include those compound forms of monoprionidian Graptolites in which the polypary is unilateral, growing from the initial point in one direction only. There can be no hesitation in regarding it morphologically as a branching Monograptus; its mode of development, the characters of its hydrothecæ, and its geological distribution, all pointing unmistakably in this direction.Keywords
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