KMS Nanjing Institute of Geology and Palaeonotology,CAS
Adaptations to changing substrates in diploblastic dinomischids from the early Cambrian | |
Zhao, Yang1,2,3,4; Chen, Ai-lin5; Klug, Christian4; Lei, Xiang-tong2,3; Cong, Pei-yun2,3 | |
2024-08-15 | |
发表期刊 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY |
ISSN | 0031-0182 |
卷号 | 648页码:12 |
摘要 | 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, similar to 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 possess unique attachment structures that vary in shape and size, presenting a unique 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. |
关键词 | Dinomischidae Phylogeny Attachment strategy Chengjiang biota Cambrian substrate revolution |
DOI | 10.1016/j.palaeo.2024.112301 |
收录类别 | SCI |
语种 | 英语 |
关键词[WOS] | CHENGJIANG LAGERSTATTE ; BENTHIC INVERTEBRATES ; EARLY EVOLUTION ; SOFT SUBSTRATA ; LIFE-STYLES ; FOSSILS ; PALEOECOLOGY ; SHALE ; BIOTA ; COMMUNITIES |
资助项目 | National Natural Science Foundation of China[42202023] ; National Natural Science Foundation of China[42072019] ; National Natural Science Foundation of China[42262004] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; YNU- Yunnan Government[202201BF070001-016] ; UZH Postdoc Grant[FK-22-129] ; Jiangsu Funding Program for Excellent Postdoctoral Talent[2022ZB457] |
WOS研究方向 | Physical Geography ; Geology ; Paleontology |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology |
WOS记录号 | WOS:001252016900001 |
项目资助者 | National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; YNU- Yunnan Government ; UZH Postdoc Grant ; Jiangsu Funding Program for Excellent Postdoctoral Talent |
出版者 | ELSEVIER |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/43885 |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Chen, Ai-lin; Cong, Pei-yun |
作者单位 | 1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 2.Yunnan Univ, Inst Palaeontol, Yunnan Key Lab Palaeobiol, Kunming 650500, Peoples R China 3.Yunnan Univ, MEC Int Joint Lab Palaeobiol & Palaeoenvironm, Inst Palaeontol, Kunming 650500, Peoples R China 4.Univ Zurich, Palaontol Inst, CH-8006 Zurich, Switzerland 5.Yuxi Normal Univ, Res Ctr Paleobiol, Yuxi 653100, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Yang,Chen, Ai-lin,Klug, Christian,et al. Adaptations to changing substrates in diploblastic dinomischids from the early Cambrian[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,648:12. |
APA | 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,648,12. |
MLA | Zhao, Yang,et al."Adaptations to changing substrates in diploblastic dinomischids from the early Cambrian".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 648(2024):12. |
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