Aculifera Explained

Aculifera (older name: Amphineura) is a proposed clade of molluscs incorporating those groups that have no conch or shell, that is, the Polyplacophora, Caudofoveata (=Chaetodermomorpha) and Solenogastres (=Neomeniomorpha).[1] It is sister to the Conchifera.

The oldest known aculiferan is Qaleruaqia, which was found in the Aftenstjernesø Formation in Greenland, which dates back to the Cambrian Stage 4.[2]

Notes and References

  1. Sigwart . J. D.. Sutton . M. D.. Deep molluscan phylogeny: synthesis of palaeontological and neontological data. Proceedings of the Royal Society B: Biological Sciences. 1624. 274. 2413–2419. Oct 2007. 17652065. 2274978. 10.1098/rspb.2007.0701. For a summary, see Web site: The Mollusca . University of California Museum of Paleontology. 2 October 2008.
  2. John S. Peel . 2020 . The oldest palaeoloricate mollusc (Cambrian Series 2, Stage 4; North Greenland) and its bearing on aculiferan evolution . Bulletin of Geosciences . 95 . 2 . 127–144 . 10.3140/bull.geosci.1779 . free .

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