Graptolite Assemblages and the Doctrine of Trends
- 1 August 1933
- journal article
- research article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 70 (8) , 351-354
- https://doi.org/10.1017/s0016756800096382
Abstract
Viewed in the light of the Doctrine of Trends some interesting facts seem to emerge from the consideration of the graptolites characteristic of some of the zones or successive assemblages of these fossils. These seem to illustrate so clearly one of the fundamental tenets of the doctrine—namely, the necessity for a large degree of independence in the different characters—that they may be worth placing on record.Keywords
This publication has 2 references indexed in Scilit:
- Notes on Some Early British GraptolitesGeological Magazine, 1929
- Sedgwick Museum Notes. The Characteristic Assemblages of the Graptolite Zones of the British Isles.Geological Magazine, 1925