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Discinida

Summary

Discinida is an order of brachiopods comprising the extant superfamily Discinoidea, and the extinct superfamilies Botsfordioidea (early—mid-Cambrian) and Acrotheloidea (early Cambrian–Early Ordovician).[2] It represents a sister taxon to the Lingulids, and is possibly paraphyletic with respect to the Acrotretoids.[3][verification needed]—or the acrotretids are paraphyletic with respect to it.[4] The group displays a broad range of shell structures, some of which incorporate substantial organic or silicified components.[3]

Discinida
Temporal range: Cambrian Stage 2–Recent[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Brachiopoda
Subphylum: Linguliformea
Order: Discinida
Superfamilies

References edit

  1. ^ "Discinida". Archived from the original on 2013-03-06. Retrieved 1 September 2016.
  2. ^ Ruppert, E.E; Fox, R.S.; Barnes, R.D (2004). Invertebrate Zoology (7 ed.). Brooks/Cole. pp. 821–829. ISBN 978-0-03-025982-1.
  3. ^ a b Williams, A.; Cusack, M.; Buckman, J. O. (1998). "Chemico-structural phylogeny of the discinoid brachiopod shell". Philosophical Transactions of the Royal Society B: Biological Sciences. 353 (1378): 2005–2038. doi:10.1098/rstb.1998.0350. PMC 1692430.
  4. ^ Williams, Alwyn; MacKay, Sarah; Cusack, Maggie (1992-07-29). "Structure of the organo-phosphatic shell of the brachiopod Discina" (PDF). Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences. 337 (1279): 83. Bibcode:1992RSPTB.337...83W.>