Discussion of early Cambrian “molluscs”

@article{Dr1975DiscussionOE,
  title={Discussion of early Cambrian “molluscs”},
  author={Dr. and Lm Ellis and yoch},
  journal={Journal of the Geological Society},
  year={1975},
  volume={131},
  pages={661 - 662}
}
  • Dr.L. Ellisyoch
  • Published 1 November 1975
  • Environmental Science, Geography
  • Journal of the Geological Society
Dr. Ellis L. Yochelson writes: I proposed a list of features considered common to all or most molluscs (Yochelson 1961) in an attempt to define that phylum without reference to soft parts; there has been no discussion of this approach, nor of the features listed. As a prime consideration I would make a distinction between phosphatic and non-phosphatic hard parts: phosphatic hard parts do not occur in molluscs. The late Cambrian molluscan class Mattheva has no relationship to the various… 

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Small shelly fossils of late Precambrian and early Cambrian age: a review of recent work

Stratigraphic sections in the high Precambrianlow Cambrian of Siberia are described. They have yielded the variety of fossils—archaeocyathids, gastropods, hyolithids, hyolithelminthids, poriferids,

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Although the shell form and skeletal ultra-structure of hyoliths are of a molluscan type, the muscle insertions suggest that the hyolith cone is not homologous with the dorsal exoskeleton of primitive mollsuscs.

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  • 1961

Aspects of the biology ofHyolitha (Mollusca)

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