A new sponge genus from the Chengjiang biota with an intriguing combination of skeletal characters

doi:10.1007/s12542-023-00652-y

	A new sponge genus from the Chengjiang biota with an intriguing combination of skeletal characters
	Chen, Ailin 2,3,4; Porras, Luis 5; Ma, Haidan 2; Hou, Xianguang 3; Woerheide, Gert 1,5,6
刊名	PALZ
	2023-06-09
页码	8
关键词	Porifera Sponge Spicules Cambrian Calliospongia Chengjiang
ISSN号	0031-0220
DOI	10.1007/s12542-023-00652-y
通讯作者	Woerheide, Gert(woerheide@lmu.de)
英文摘要	The development of fossil sponge systematics is hindered by factors such as their low anatomical complexity and the low preservation potential of many characters used in the definition of extant sponge clades. Here we describe Calliospongia chunchengia gen. et sp. nov., a new sponge from the Lower Cambrian Chengjiang biota, which possesses a unique combination of characters. The skeleton of C. chunchengia is similar to those of leptomitid protomonaxonids in being composed of large spicules arranged longitudinally. However, it is distinct enough to belong in its own genus and even question a leptomitid affinity, because, unlike the members of this group, which usually have two categories of diactine spicules, its skeleton is entirely composed of triactines. The new taxon shares the presence of large megascleres with demosponges, hexactinellids and the ascosponges, suggesting an affinity to the total group of Silicea. It is also reminiscent of the hexactinellid-like reticulosans, showing a potential connection between two major types of Early Palaeozoic sponge body plans. A more accurate definition of the Cambro-Ordovician groups and the creation of a total evidence framework that integrates extinct and extant sponge morphology into the phylogenetic scenario derived from phylogenomics seem to be essential steps for the improvement of our understanding of early sponge evolution.
资助项目	National Natural Science Foundation of China[42262004] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[193104] ; EU[246987] ; EU[FP7-PEOPLE-2009-IRSES] ; Deutsche Forschungsgemeinschaft (DFG)[Wo896/20-1] ; Projekt DEAL
WOS关键词	EVOLUTION ; FOSSIL ; PORIFERA ; RECORD ; ANHUI ; NOV.
WOS研究方向	Paleontology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:001003954600001
资助机构	National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) ; EU ; Deutsche Forschungsgemeinschaft (DFG) ; Projekt DEAL
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42392]
专题	中国科学院南京地质古生物研究所
通讯作者	Woerheide, Gert
作者单位	1.Ludwig Maximilians Univ Munchen, GeoBio Ctr, Munich, Germany 2.Yuxi Normal Univ, Yuxi 653100, Peoples R China 3.MEC Int Joint Lab Palaeobiol & Palaeoenvironm, Kunming 650091, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 5.Ludwig Maximilians Univ Munchen, Dept Earth & Environm Sci Paleontol & Geobiol, Munich, Germany 6.SNSB Bayer Staatssammlung Palaontol & Geol, Munich, Germany
推荐引用方式 GB/T 7714	Chen, Ailin,Porras, Luis,Ma, Haidan,et al. A new sponge genus from the Chengjiang biota with an intriguing combination of skeletal characters[J]. PALZ,2023:8.
APA	Chen, Ailin,Porras, Luis,Ma, Haidan,Hou, Xianguang,&Woerheide, Gert.(2023).A new sponge genus from the Chengjiang biota with an intriguing combination of skeletal characters.PALZ,8.
MLA	Chen, Ailin,et al."A new sponge genus from the Chengjiang biota with an intriguing combination of skeletal characters".PALZ (2023):8.