Chitinozoan chains and cocoons from the Upper Ordovician Soom Shale lagerstätte, South Africa: implications for affinity

  title={Chitinozoan chains and cocoons from the Upper Ordovician Soom Shale lagerst{\"a}tte, South Africa: implications for affinity},
  author={Sarah E. Gabbott and Richard J. Aldridge and Johannes N. Theron},
  journal={Journal of the Geological Society},
  pages={447 - 452}
The Upper Ordovician (Ashgill) Soom Shale lagerstätte preserves chitinozoans on the bedding planes as scattered individuals and, more significantly, in linked chains, in aggregated masses and associated with organic envelopes. Chitinozoan affinites are problematical, but the Soom Shale has a restricted biota, providing constraints on hypotheses of relationship. No graptolites or gastropods, which are possible contenders for chitinozoan production, occur. The chitinozoans are, however… Expand

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