Hexactinellid faunas in the Chalk of England and Ireland
- 1 February 1968
- journal article
- research article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 105 (1) , 15-22
- https://doi.org/10.1017/s0016756800046446
Abstract
The Chalk of England contains three main Hexactinellid faunas, of Lower Cenomanian, Middle and Upper Turonian, and Lower Senonian to Maestrichtian age respectively. The third is also represented in Ireland. A number of minor faunal changes can also be recognized. The three main faunas have little in common, and their relationship is not evolutionary; the changes appear to be due to migrations. By analogy with modern forms, this is likely to reflect changes in the pattern of current circulation in the Upper Cretaceous ocean.Keywords
This publication has 5 references indexed in Scilit:
- Sponges and the Chalk RockGeological Magazine, 1962
- Rezente und fossile Flachmeer-absätze petrologisch betrachtet und gedeutetInternational Journal of Earth Sciences, 1958
- Cretaceous sponges: Some biological and geological considerationsProceedings of the Geologists' Association, 1937
- SpongesDiscovery reports, 1932
- XI.—On the Ventriculidæ of the chalk; including the description of peculiar characters of structure observed in their tissuesAnnals and Magazine of Natural History, 1847