Disc-shaped fossils resembling porpitids or eldonids from the early Cambrian (Series 2: Stage 4) of western USA

@inproceedings{Lieberman2017DiscshapedFR,
  title={Disc-shaped fossils resembling porpitids or eldonids from the early Cambrian (Series 2: Stage 4) of western USA},
  author={Bruce S. Lieberman and Richard Kurkewicz and Heather E. Shinogle and Julien Kimmig and Breand{\'a}n Anraoi MacGabhann},
  booktitle={PeerJ},
  year={2017}
}
The morphology and affinities of newly discovered disc-shaped, soft-bodied fossils from the early Cambrian (Series 2: Stage 4, Dyeran) Carrara Formation are discussed. These specimens show some similarity to the Ordovician Discophyllum Hall, 1847; traditionally this taxon had been treated as a fossil porpitid. However, recently it has instead been referred to as another clade, the eldonids, which includes the enigmatic Eldonia Walcott, 1911 that was originally described from the Cambrian… CONTINUE READING

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