Productida is an extinct order of brachiopods in the extinct class Strophomenata. Members of Productida first appeared during the Silurian.[1] They represented the most abundant group of brachiopods during the Permian period, accounting for 45-70% of all species. The vast majority of species went extinct during the Permian-Triassic extinction event, though a handful survived into the Early Triassic.[2] Many productids are covered in hollow tubular spines, which are characteristic of the group. A number of functions for the spines have been proposed, including as a defensive mechanism against predators.[3]

Productida
Temporal range: Silurian–Early Triassic
Productid brachiopod ventral valve interior; Roadian, Guadalupian (Middle Permian); Glass Mountains, Texas.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Brachiopoda
Class: Strophomenata
Order: Productida
Sarytcheva & Sokolskaya, 1959
Suborders

Taxonomy

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Following the Treatise[4]

References

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  1. ^ Clarkson, E. N. K. (2013-07-23). Invertebrate Palaeontology and Evolution. John Wiley & Sons. ISBN 978-1-118-68516-7.
  2. ^ Zhang, Yang; He, WeiHong (November 2008). "Evolutionary patterns of Productida (Brachiopoda) morphology during the Permian in South China". Science in China Series D: Earth Sciences. 51 (11): 1589–1600. Bibcode:2008ScChD..51.1589Z. doi:10.1007/s11430-008-0131-3. ISSN 1006-9313. S2CID 129786860.
  3. ^ Johnsen, Simen Alexander Linge; Ahmed, Madeeha; Leighton, Lindsey R. (April 2013). "The effect of spines of a Devonian productide brachiopod on durophagous predation". Palaeogeography, Palaeoclimatology, Palaeoecology. 375: 30–37. Bibcode:2013PPP...375...30J. doi:10.1016/j.palaeo.2013.02.009.
  4. ^ Williams, Alwyn; Brunton, C.H.C.; Carlson, S.J.; et al. (1997–2007). Kaesler, Roger L.; Selden, Paul (eds.). Part H, Brachiopoda (Revised). Treatise on Invertebrate Paleontology. Boulder, Colorado; Lawrence, Kansas: Geological Society of America; University of Kansas.
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