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Search: id:"swepub:oai:DiVA.org:uu-509277" > When lingulid brach...

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  • Liang, YueUppsala universitet,Paleobiologi,Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China. (author)

When lingulid brachiopods became infaunal(?) : Perspectives from the morphological and anatomical information

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • Estonian Academy Publishers,2023
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-509277
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-509277URI
  • https://doi.org/10.3176/earth.2023.41DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Morphology usually serves as an effective proxy for functional ecology, and the evaluation of morphological, anatomical, and ecological changes allows for a deeper understanding of the nature of diversification and macroevolution. Lingulid (Order Lingulida) brachiopods were diverse and abundant during the early Palaeozoic, but decreased in diversity over time, with only a few genera of linguloids and discinoids present in modern marine ecosystems, frequently referred to as 'living fossils'. The dynamics that drove this decline remain unclear and it has not been determined if there is an associated decline in morphological and ecological diversity. We applied geometric morphometrics to reconstruct global morphospace occupied by lingulid brachiopods through the Phanerozoic, with results showing that maximum morphospace occupation was reached in the Early Ordovician. At this time of peak diversity, linguloids with sub-rectangular shells already possessed several evolutionary features common to all modern infaunal forms such as the rearrangement of mantle canals and reduction of the pseudointerarea. The endOrdovician mass extinction had a differential effect on linguloids, disproportionally wiping out those with rounded shells whilst forms with sub-rectangular shells survived both the endOrdovician and the Permian-Triassic mass extinctions, with post-extinction faunas predomi nantly composed of infaunal forms. For discinoids, both morphospace occupation and epi-benthic life strategies remain consistent through the Phanerozoic. Analysis of the morphospace occupation of lingulids over time, taking into account their body size, anatomical features and ecological changes, suggests that the reduced morphological and ecological diversity observed in modern lingulid brachiopods reflects evolutionary contingency rather than deterministic processes.

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  • Strotz, Luke C.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China. (author)
  • Topper, Timothy P.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China. (author)
  • Holmer, Lars E.,1960-Uppsala universitet,Paleobiologi,Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China.(Swepub:uu)larholme (author)
  • Budd, GrahamUppsala universitet,Paleobiologi(Swepub:uu)grahbudd (author)
  • Chen, YanlongNorthwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China. (author)
  • Fang, RuisenNorthwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China. (author)
  • Hu, YazhouNorthwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China. (author)
  • Zhang, ZhifeiNorthwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China. (author)
  • Uppsala universitetPaleobiologi (creator_code:org_t)

Related titles

  • In:Estonian journal of earth sciences: Estonian Academy Publishers72:1, s. 140-1401736-47281736-7557

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