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Vauxiids as descendants of archaeocyaths: a hypothesis
Luo, Cui(罗翠)1; Yang, Aihua2; Zhuravlev, Andrey Yu.3; Reitner, Joachim4,5
2021-06-09
Source PublicationLETHAIA
ISSN0024-1164
Pages11
Abstract

Archaeocyaths were one of the major animal groups contributing to the Cambrian Explosion. Despite an overall poriferan appearance of their hypercalcified skeletons, they exhibit a number of peculiar features such as the presence of septa and an absence of spicules. This sets archaeocyaths apart from general trends in early poriferan evolution. Fossils recently discovered from the early Cambrian Guanshan Lagerstatte of South China exhibit features typical for the suborder Archaeocyathina whilst possessing a silicified skeleton associated with carbonaceous material. This rigid fibrous skeletal framework, on the other hand, fits the diagnosis of the supposed ancestral aspiculate demosponges, the family Vauxiidae. By a detailed description of this specimen and a direct morphological comparison between the Archaeocyathina and the Vauxiidae, we suggest that the supposed Cambrian representatives of horny demosponges, that is, vauxiids, probably, were a progeny lineage of archaeocyathines. They survived the extinction of hypercalcified archaeocyaths due to their ecological adaption to siliciclastic environments. The existence of hypercalcified dictyoceratid ('keratosan') sponge Vaceletia, well known as a 'living archaeocyath', supports such a possibility.

Keywordarchaeocyaths Cambrian keratosans Porifera verongiids
DOI10.1111/let.12433
Indexed BySCI
Language英语
WOS KeywordSOFT-PART PRESERVATION ; 1ST REPORT ; IRON MINERALIZATION ; SEAWATER CHEMISTRY ; CAMBRIAN RADIATION ; PASSIVE FLOW ; SOUTH CHINA ; SPONGE ; DEMOSPONGIAE ; PORIFERA
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDB260000000] ; National Natural Science Foundation of China[41872011] ; National Natural Science Foundation of China[41972016]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000659039500001
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
PublisherWILEY
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/38316
Collection中国科学院南京地质古生物研究所
Corresponding AuthorLuo, Cui(罗翠)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Ctr Excellence Life & Paleoenvironm, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China
2.Nanjing Univ, Sch Earth Sci & Engn, Ctr Res & Educ Biol Evolut & Environm, 163 Xianlin Ave, Nanjing 210023, Peoples R China
3.Lomonosov Moscow State Univ, Dept Biol Evolut, Fac Biol, Leninskie Gory 1 12, Moscow 119234, Russia
4.Univ Gottingen, Dept Geobiol, Ctr Geosci, Goldschmidtstr 3, Gottingen, Germany
5.Acad Sci & Humanities, Theater Str 7, D-37077 Gottingen, Germany
Recommended Citation
GB/T 7714
Luo, Cui,Yang, Aihua,Zhuravlev, Andrey Yu.,et al. Vauxiids as descendants of archaeocyaths: a hypothesis[J]. LETHAIA,2021:11.
APA Luo, Cui,Yang, Aihua,Zhuravlev, Andrey Yu.,&Reitner, Joachim.(2021).Vauxiids as descendants of archaeocyaths: a hypothesis.LETHAIA,11.
MLA Luo, Cui,et al."Vauxiids as descendants of archaeocyaths: a hypothesis".LETHAIA (2021):11.
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