Cryptospores from the Shipai Formation (Cambrian Series 2, Stage 4) of Yichang, southern China.
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| Title: | Cryptospores from the Shipai Formation (Cambrian Series 2, Stage 4) of Yichang, southern China. |
|---|---|
| Authors: | Wang, Kai1 (AUTHOR), Xu, Hong-He1 (AUTHOR) hhxu@nigpas.ac.cn, Yin, Lei-Ming1 (AUTHOR) |
| Source: | Palynology. May2026, Vol. 50 Issue 2, p1-12. 12p. |
| Subjects: | Spores, Plant evolution, Geological formations, Fossil microorganisms, Cambrian Period, Paleogeography |
| Geographic Terms: | China |
| Abstract: | The Cambrian acts as a crucial period for the transition from aquatic algae to land plants. A number of spore-like microfossils of different types, though scarcely reported, illuminate possibilities for unraveling this cryptic history of plant evolution. Here, we recognize a palynomorph assemblage from the Shipai Formation (Cambrian Series 2, Stage 4) of Yichang, southern China. Newly discovered palynomorphs are dominated by spore-like microfossils, which can be grouped into cryptospores sensu Strother and Beck. Three taxa, Adinosporus bullatus, A. geminus and A. voluminosus, are identified. In terms of cell size, wall thickness, fold morphology, cell configuration and wall structure, the morphological disparity supports the identifications of these microfossils. In addition, a small number of filaments have also been found in the Shipai Formation. Sphaeromorphs only occur as a leiosphaerid specimen. No acanthomorphs are encountered in the collection. The occurrence of abundant spore-like microfossils here supports that the Shipai Formation was deposited in a shoreland environment, and during the Shipai depositional period, there was an ancient terrain in the vicinity serving as a source of terrestrial organic matter. The Shipai palynomorphs reveal a previously unrecognized record from southern China and contribute an example of early occurrences of spore-like microfossils. This discovery extends the known paleogeographic distribution of spore-like microfossils and ultimately helps enrich the fossil record of the origin of land plants and its evolutionary significance. [ABSTRACT FROM AUTHOR] |
| Copyright of Palynology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 193388429 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Cryptospores from the Shipai Formation (Cambrian Series 2, Stage 4) of Yichang, southern China. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wang%2C+Kai%22">Wang, Kai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Hong-He%22">Xu, Hong-He</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hhxu@nigpas.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Yin%2C+Lei-Ming%22">Yin, Lei-Ming</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Palynology%22">Palynology</searchLink>. May2026, Vol. 50 Issue 2, p1-12. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Spores%22">Spores</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+evolution%22">Plant evolution</searchLink><br /><searchLink fieldCode="DE" term="%22Geological+formations%22">Geological formations</searchLink><br /><searchLink fieldCode="DE" term="%22Fossil+microorganisms%22">Fossil microorganisms</searchLink><br /><searchLink fieldCode="DE" term="%22Cambrian+Period%22">Cambrian Period</searchLink><br /><searchLink fieldCode="DE" term="%22Paleogeography%22">Paleogeography</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22China%22">China</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The Cambrian acts as a crucial period for the transition from aquatic algae to land plants. A number of spore-like microfossils of different types, though scarcely reported, illuminate possibilities for unraveling this cryptic history of plant evolution. Here, we recognize a palynomorph assemblage from the Shipai Formation (Cambrian Series 2, Stage 4) of Yichang, southern China. Newly discovered palynomorphs are dominated by spore-like microfossils, which can be grouped into cryptospores sensu Strother and Beck. Three taxa, Adinosporus bullatus, A. geminus and A. voluminosus, are identified. In terms of cell size, wall thickness, fold morphology, cell configuration and wall structure, the morphological disparity supports the identifications of these microfossils. In addition, a small number of filaments have also been found in the Shipai Formation. Sphaeromorphs only occur as a leiosphaerid specimen. No acanthomorphs are encountered in the collection. The occurrence of abundant spore-like microfossils here supports that the Shipai Formation was deposited in a shoreland environment, and during the Shipai depositional period, there was an ancient terrain in the vicinity serving as a source of terrestrial organic matter. The Shipai palynomorphs reveal a previously unrecognized record from southern China and contribute an example of early occurrences of spore-like microfossils. This discovery extends the known paleogeographic distribution of spore-like microfossils and ultimately helps enrich the fossil record of the origin of land plants and its evolutionary significance. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Palynology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/01916122.2025.2589185 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1 Subjects: – SubjectFull: Spores Type: general – SubjectFull: Plant evolution Type: general – SubjectFull: Geological formations Type: general – SubjectFull: Fossil microorganisms Type: general – SubjectFull: Cambrian Period Type: general – SubjectFull: Paleogeography Type: general – SubjectFull: China Type: general Titles: – TitleFull: Cryptospores from the Shipai Formation (Cambrian Series 2, Stage 4) of Yichang, southern China. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wang, Kai – PersonEntity: Name: NameFull: Xu, Hong-He – PersonEntity: Name: NameFull: Yin, Lei-Ming IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 01916122 Numbering: – Type: volume Value: 50 – Type: issue Value: 2 Titles: – TitleFull: Palynology Type: main |
| ResultId | 1 |
