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Adaptations to changing substrates in diploblastic dinomischids from the early Cambrian

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اقرأ أكثر حفظ في قائمتي
  • المؤلفون: Zhao, Yang; Chen, Ai-lin; Klug, Christian; Klug, Christian; Lei, Xiang-tong; Cong, Pei-yun
  • المصدر:
    Zhao, Yang; Chen, Ai-lin; Klug, Christian; Lei, Xiang-tong; Cong, Pei-yun (2024). Adaptations to changing substrates in diploblastic dinomischids from the early Cambrian. Palaeogeography, Palaeoclimatology, Palaeoecology:112301.
  • نوع التسجيلة:
    Electronic Resource
  • الدخول الالكتروني :
    https://www.zora.uzh.ch/id/eprint/259990/
    https://www.zora.uzh.ch/id/eprint/259990
    10.1016/j.palaeo.2024.112301
  • معلومة اضافية
    • Publisher Information:
      Elsevier 2024-05-01
    • نبذة مختصرة :
      The significant changes in seafloor conditions during the Ediacaran-Cambrian transition presumably bear on the autecology of the benthic animals living in this time interval. However, little evidence shows morphological modifications and life strategy transitions in early animals in response to this substrate revolution. Dinomischidae is a family of diploblastic-grade with a sessile, suspension-feeding lifestyle, which includes Xianguangia, Daihua and Dinomischus. Here, we redescribe Calathites spinalis, a poorly known taxon from the early Cambrian (Epoch 2, Age 3, ~518 Ma), as a new member of this family. Our new material reveals that the body of C. spinalis consists of a stalked calyx and 18 tentacle-sheath complexes, which is a typical trait of dinomischids. Our phylogenetic analyses recover Calathites as a sister group of Xianguangia and Daihua and support dinomischids being a monophyletic group. Members of dinomischids bear unique attachment structures that vary in shape and size, showing an example of morphological adaptations of early sessile animals during the Cambrian substrate revolution. Comparison with early metazoan fossils reveals that dinomischids and other early basal metazoans lagged behind sessile bilaterians in terms of adaptations to substrate changes; the former tends to persist with attachment strategies adapted to Proterozoic-style seafloor conditions that were relatively firm.
    • الموضوع:
      Department of Paleontology; 560 Fossils & prehistoric life; Journal Article; PeerReviewed; info:eu-repo/semantics/article
    • Availability:
      Open access content. Open access content
      info:eu-repo/semantics/openAccess
      Creative Commons: Attribution 4.0 International (CC BY 4.0)
      http://creativecommons.org/licenses/by/4.0
      info:eu-repo/semantics/openAccess
    • Note:
      application/pdf
      info:doi/10.5167/uzh-259990
      English
      English
    • Other Numbers:
      CHUZH oai:www.zora.uzh.ch:259990
      https://www.zora.uzh.ch/id/eprint/259990/1/pagination_PALAEO_112301.pdf
      info:doi/10.5167/uzh-259990
      info:doi/10.1016/j.palaeo.2024.112301
      urn:issn:0031-0182
      1443059196
    • Contributing Source:
      HAUPTBIBLIOTHEK UNIV OF ZURICH
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1443059196
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