Occurrence of Tannuolina in the early Cambrian siltstones of the Hazara Basin, North Pakistan, and its biostratigraphical significance

doi:10.1144/jgs2021-149

NIGPAS OpenIR

	Occurrence of Tannuolina in the early Cambrian siltstones of the Hazara Basin, North Pakistan, and its biostratigraphical significance
通讯作者	Pan, Bing(bpan@nigpas.ac.cn)
	Pan, Bing 1,2; Khan, Malik Muhammad Saud Sajid 1,2,3; Li, Guoxiang1,2 ; Ahmed, Shehryar 1,2,3; Qasim, Muhammad 4; Yin, Zongjun1,2 ; Jadoon, Ishtiaq A. K.4; Zhu, Maoyan1,2,3
	2023-07-07
发表期刊	JOURNAL OF THE GEOLOGICAL SOCIETY
ISSN	0016-7649
卷号	180 期号:4 页码:12
摘要	The tommotiids are an important group of Cambrian small shelly fossils, primarily retrieved from carbonate rock by acid dissolution. In this study, abundant isolated sclerites of Tannuolina are recovered from the siltstone-dominated upper part of the Hazira Formation in the eastern Hazara Basin, North Pakistan. This discovery of tommotiids preserved in the siltstones not only suggests their occurrence in a variety of sedimentary lithofacies, but also provides the opportunity to look for the sclerites or scleritomes (or even soft tissue) of tommotiids in much wider taphonomic windows. The sclerites include two morphs (i.e. mitral and sellate types). Through morphological comparison, they can be identified as Tannuolina zhangwentangi Qian and Bengtson, 1989. The large mitral and sellate sclerites (about 1 cm) illustrated in the present study manifest a relatively consistent morphology during size increase. The sellate sclerites may contain two sub-types, a larger sellate sclerite with sella on the sellate side and a smaller convex triangular sclerite without sella on either side. In the original scleritome, the two sub-types of sellate sclerites probably combine as a composite with the duplicatural side of the smaller one attached on the sella area of the large one. For the first time, T. zhangwentangi, previously unknown outside South China, has been recovered from the Indian subcontinent. The middle and upper part of the Hazira Formation exclusively bearing T. zhangwentangi can directly invite correlation with the S. flabelliformis-T. zhangwentangi Assemblage Zone of South China representing the uppermost Cambrian Stage 2. This new find not only signifies the utility of T. zhangwentangi for intercontinental biostratigraphical correlation, but also suggests that the Terreneuvian small shelly fossil (SSF) biostratigraphy between the Indian subcontinent and South China is consistent, comprising three (at least two) correlative SSF Assemblage Zones (Zone I, possibly Zone III, and Zone IV of South China). Additionally, our result may also support a relatively close palaeogeographical linkage between these two regions in the early Cambrian.
DOI	10.1144/jgs2021-149
收录类别	SCI
语种	英语
关键词[WOS]	SMALL SHELLY FOSSILS ; DETRITAL ZIRCON PROVENANCE ; INDIA-ASIA COLLISION ; SOUTH CHINA ; LESSER HIMALAYA ; SERIES 2 ; BOUNDARY ; SCLERITOME ; TOMMOTIIDS ; SUCCESSION
资助项目	Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0706] ; National Natural Science Foundation of China[42002024]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001021303800013
项目资助者	Second Tibetan Plateau Scientific Expedition and Research ; National Natural Science Foundation of China
出版者	GEOLOGICAL SOC PUBL HOUSE
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/42543
专题	中国科学院南京地质古生物研究所
通讯作者	Pan, Bing
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironment, 39 East Beijing Rd, Nanjing 210008, Peoples R China 3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 4.COMSATS Univ Islamabad, Dept Earth Sci, Abbottabad Campus, Abbottabad, Pakistan
第一作者单位	中国科学院南京地质古生物研究所
通讯作者单位	中国科学院南京地质古生物研究所
推荐引用方式 GB/T 7714	Pan, Bing,Khan, Malik Muhammad Saud Sajid,Li, Guoxiang,et al. Occurrence of Tannuolina in the early Cambrian siltstones of the Hazara Basin, North Pakistan, and its biostratigraphical significance[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2023,180(4):12.
APA	Pan, Bing.,Khan, Malik Muhammad Saud Sajid.,Li, Guoxiang.,Ahmed, Shehryar.,Qasim, Muhammad.,...&Zhu, Maoyan.(2023).Occurrence of Tannuolina in the early Cambrian siltstones of the Hazara Basin, North Pakistan, and its biostratigraphical significance.JOURNAL OF THE GEOLOGICAL SOCIETY,180(4),12.
MLA	Pan, Bing,et al."Occurrence of Tannuolina in the early Cambrian siltstones of the Hazara Basin, North Pakistan, and its biostratigraphical significance".JOURNAL OF THE GEOLOGICAL SOCIETY 180.4(2023):12.