The nautiloid cephalopods: a strange success

@article{Holland1987TheNC,
  title={The nautiloid cephalopods: a strange success},
  author={Charles Hepworth Holland},
  journal={Journal of the Geological Society},
  year={1987},
  volume={144},
  pages={1 - 15}
}
  • C. H. Holland
  • Published 1 January 1987
  • Environmental Science
  • Journal of the Geological Society
The origin of the cephalopods from the Monoplacophora is briefly considered. The first rare Upper Cambrian Plectronoceras are now known to be succeeded by a later Cambrian radiation involving the Plectronoceratida, Ellesmeroceratida, and two other orders, all well documented from Chinese occurrences. The greatest success of the nautiloid cephalopods came in the Ordovician Period with three evolutionary pulses in the Tremadoc, Arenig, and later Ordovician. Three particular Palaeozoic problems… 

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TLDR
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