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Oldest known fossil of Rossellids (Hexactinellida, Porifera) from the Ordovician-Silurian transition of Anhui, South China
Li, Lixia (李丽霞)1,2; Janussen, Dorte3,4; Zhan, Renbin (詹仁斌)1,2; Reitner, Joachim5
2019-12-01
Source PublicationPALZ
ISSN0031-0220
Volume93Issue:4Pages:559-566
Abstract

Rossellids are geographically widespread in the modern deep-water sponge community. They are referred to Lyssacinosida, characterized by hypodermal pentactines and choanosomal megascleres of hexactines and diactines or the latter only. The fossil records of rossellids are usually found in the Cenozoic, with the earliest existence known from the Upper Cretaceous, later than the molecular phylogenetic result. A new lyssacinosan hexactinellid, Palaeorossella sinensis gen. et sp. nov., is described from the uppermost Ordovician of Anhui, South China. The sponge shows a saccular, globular or oval form with relatively thick wall. The skeleton is lyssacine type mainly composed of hexactines and stauractines, with the outer margin reinforced by hypodermal pentactines, which usually protrude the periphery as prostalia lateralia. The new species is well-preserved with typical hypodermal and prostalia pentactines as well as an articulated skeleton, giving some tentative insights into the affinity between the new species and other taxa in Rossellidae. It represents the oldest record of rossellids, providing new information for understanding the phylogeny of rossellids and on the evolution of modern Hexactinellida.

KeywordHexactinellida Rossellids Porifera Ordovician-Silurian transition Anhui South China
DOI10.1007/s12542-019-00452-3
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[41702005] ; National Natural Science Foundation of China (NSFC)[41521061] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000496332000001
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/29100
Collection中国科学院南京地质古生物研究所
Corresponding AuthorLi, Lixia (李丽霞)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Jiangsu, Peoples R China
3.Res Inst, D-60325 Frankfurt, Germany
4.Nat Museum Senckenberg, D-60325 Frankfurt, Germany
5.Georg August Univ Gottingen, Fac Geosci & Geog, Dept Geobiol, Ctr Geosci, D-37077 Gottingen, Germany
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Li, Lixia ,Janussen, Dorte,Zhan, Renbin ,et al. Oldest known fossil of Rossellids (Hexactinellida, Porifera) from the Ordovician-Silurian transition of Anhui, South China[J]. PALZ,2019,93(4):559-566.
APA Li, Lixia ,Janussen, Dorte,Zhan, Renbin ,&Reitner, Joachim.(2019).Oldest known fossil of Rossellids (Hexactinellida, Porifera) from the Ordovician-Silurian transition of Anhui, South China.PALZ,93(4),559-566.
MLA Li, Lixia ,et al."Oldest known fossil of Rossellids (Hexactinellida, Porifera) from the Ordovician-Silurian transition of Anhui, South China".PALZ 93.4(2019):559-566.
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