Growth Stages in some Species of Promicroceras
- 1 February 1943
- journal article
- research article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 80 (1) , 15-22
- https://doi.org/10.1017/s0016756800076068
Abstract
In a recent study of the growth stages of Promicroceras marstonense (Currie, 1942), it was shown that apart from slight individual variations, the growth-ratios exhibited changes at certain stages, which are characteristic of the species. A similar investigation has now been carried out with material representing other species of Promicroceras, in order to ascertain how far there is general agreement within the genus and the extent to which any differences are typical of the various species studied.Keywords
This publication has 3 references indexed in Scilit:
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- The ammonite body-chamber, with special reference to the buoyancy and mode of Life of the living ammoniteQuarterly Journal of the Geological Society, 1940
- The Black Marl of Black Ven and Stonebarrow, in the Lias of the Dorset CoastQuarterly Journal of the Geological Society, 1926