Systematic paleontology, acritarch biostratigraphy, and delta C-13 chemostratigraphy of the early Ediacaran Krol A Formation, Lesser Himalaya, northern India

Simple item page
dc.contributor.authorXiao, Shuhaien
dc.contributor.authorJiang, Ganqingen
dc.contributor.authorYe, Qinen
dc.contributor.authorOuyang, Qingen
dc.contributor.authorBanerjee, Dhiraj M.en
dc.contributor.authorSingh, Birendra P.en
dc.contributor.authorMuscente, A. D.en
dc.contributor.authorZhou, Chuanmingen
dc.contributor.authorHughes, Nigel C.en
dc.coverage.countryIndiaen
dc.date.accessioned2022-07-08T16:27:37Zen
dc.date.available2022-07-08T16:27:37Zen
dc.date.issued2022en
dc.description.abstractAcritarch biostratigraphic and delta C-13 chemostratigraphic data from the Krol A Formation in the Solan area (Lesser Himalaya, northern India) are integrated to aid inter-basinal correlation of early-middle Ediacaran strata. We identified a prominent negative delta C-13 excursion (likely equivalent to EN2 in the lower Doushantuo Formation in the Yangtze Gorges area of South China), over a dozen species of acanthomorphs (including two new species-Cavaspina tiwariae Xiao n. sp., Dictyotidium grazhdankinii Xiao n. sp.), and numerous other microfossils from an interval in the Krol A Formation. Most microfossil taxa from the Krol A and the underlying Infra-Krol formations are also present in the Doushantuo Formation. Infra-Krol acanthomorphs support a correlation with the earliest Doushantuo biozone: the Appendisphaera grandis-Weissiella grandistella-Tianzhushania spinosa Assemblage Zone. Krol A microfossils indicate a correlation with the second or (more likely, when delta C-13 data are considered) the third biozone in the lower Doushantuo Formation (i.e., the Tanarium tuberosum-Schizofusa zangwenlongii or Tanarium conoideum-Cavaspina basiconica Assemblage Zone). The association of acanthomorphs with EN2 in the Krol Formation fills a critical gap in South China where chert nodules, and thus acanthomorphs, are rare in the EN2 interval. Like many other Ediacaran acanthomorphs assemblages, Krol A and Doushantuo acanthomorphs are distributed in low paleolatitudes, and they may represent a distinct paleobiogeographic province in east Gondwana. The Indian data affirm the stratigraphic significance of acanthomorphs and delta C-13, clarify key issues of lower Ediacaran bio- and chemostratigraphic correlation, and strengthen the basis for the study of Ediacaran eukaryote evolution and paleobiogeography. UUID: http://zoobank.org/5289fdb2-0e49-4b3b-880f-f5b21acab371.en
dc.description.notesThe research was funded by the US National Science Foundation (EAR-1124062 and EAR-2021207 to SX, EAR-1124545 to GJ, and EAR-1124303 to NCH), the National Natural Science Foundation of China (41902004 to QY and 41672027 to CZ), China Postdoctoral Science Foundation (2021M692980 to QY), and Indian University Grants Commission Basic Scientific Research Program (20-1/2012 and 20-8-12/2012 to BPS). We thank X. Shang, S. Willman, and an anonymous reviewer for constructive comments that helped improve this paper. This paper is a contribution to IGCP668.en
dc.description.sponsorshipUS National Science Foundation [EAR-1124062, EAR-2021207, EAR-1124545, EAR-1124303]; National Natural Science Foundation of China [41902004, 41672027]; China Postdoctoral Science Foundation [2021M692980]; Indian University Grants Commission Basic Scientific Research Program [20-1/2012, 20-8-12/2012]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1017/jpa.2022.7en
dc.identifier.eissn1937-2337en
dc.identifier.issn0022-3360en
dc.identifier.otherPII S0022336022000075en
dc.identifier.urihttp://hdl.handle.net/10919/111182en
dc.language.isoenen
dc.publisherCambridge University Pressen
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectorganic-walled microfossilsen
dc.subjectneoproterozoic doushantuo formationen
dc.subjectyangtze gorges areaen
dc.subjectprecambrian-cambrian boundaryen
dc.subjectproterozoic phosphate rocksen
dc.subjectearly vendian microfossilsen
dc.subjectsouth chinaen
dc.subjectacanthomorphic acritarchsen
dc.subjectmulticellular thallophytesen
dc.subjectvindhyan supergroupen
dc.titleSystematic paleontology, acritarch biostratigraphy, and delta C-13 chemostratigraphy of the early Ediacaran Krol A Formation, Lesser Himalaya, northern Indiaen
dc.title.serialJournal of Paleontologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
XiaoSystematic2022.pdf
Size:
8.74 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download

Collections

Scholarly Works, Geosciences