Controlling factors in the evolution of the graptolites
- 1 May 1980
- journal article
- research article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 117 (3) , 277-284
- https://doi.org/10.1017/s0016756800030491
Abstract
Summary: Recent ideas on evolution in the graptolites have been based upon an assumption either of passive flotation and passive feeding, or of active and co-ordinated ciliary feeding resulting in automobility. These ideas are compared and a possible evolutionary consequence of automobility is suggested.This publication has 6 references indexed in Scilit:
- Mode of life of planktonic graptolites: flotation structure in Ordovician Dicellograptus sp.Paleobiology, 1979
- PALAEOECOLOGY OF THE GRAPTOLITHINA, AN EXTINCT CLASS OF THE PHYLUM HEMICHORDATABiological Reviews, 1975
- More thoughts on the automobility of the graptolitesJournal of the Geological Society, 1972
- Probable Instance of Genetic Polymorphism in the GraptolitesNature, 1967
- The Morphology and Systematics of “Didymograptus”fasciculatusNicholson, 1869Geological Magazine, 1966
- Lower Palaeozoic planktonQuarterly Journal of the Geological Society, 1964