An Ordovician nectocaridid hints at an endocochleate origin of Cephalopoda

@article{Smith2020AnON,
  title={An Ordovician nectocaridid hints at an endocochleate origin of Cephalopoda},
  author={M. R. Smith},
  journal={Journal of Paleontology},
  year={2020},
  volume={94},
  pages={64 - 69}
}
  • M. R. Smith
  • Published 2020
  • Biology
  • Journal of Paleontology
Abstract. Nectocaridids are soft-bodied Cambrian organisms that have been controversially interpreted as primitive cephalopods, at odds with the long-held belief that these mollusks evolved from a shell-bearing ancestor. Here, I document a new nectocaridid from the Whetstone Gulf Formation, extending the group's range into the Late Ordovician. Nectocotis rusmithi n. gen. n. sp. possesses a robust internal element that resembles a non-mineralized phragmocone or gladius. Nectocaridids can be… Expand
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