与Bachmannocenea diodon亚种相关的硅鞭毛丛。赤道太平洋东部的结节虫（海洋钻探项目第138段）

IF 1.1 4区地球科学 Q3 GEOLOGY

Acta Geologica Polonica Pub Date : 2023-07-20 DOI:10.24425/agp.2021.139306

Adrianna Szaruga, K. Mccartney, Jakub Witkowski

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引用次数: 0

摘要

：Szaruga，A.，McCartney，K.和Witkowski，J.2022。与Bachmannocenea diodon亚种相关的硅鞭毛丛。赤道太平洋东部的结节虫（海洋钻探项目第138段）。波兰地质学报，72（2），145–158。Warszawa。东太平洋海洋钻探项目848B、849B、850B、851B孔横跨赤道的南北断面的上中新世（~6 Ma）沉积物记录了一次与硅鞭毛虫Bachmannocena diodon亚种相关的异常骨骼变异。nodosa（Bukry）Bukry，1987年。该丛中的骨骼持续了55000至75000年，包括一个横跨两侧基环的拱形，这是该属极不寻常的形态。骨骼形态类型组在神经丛发作中很常见，并且在不同部位之间以一致的系统序列出现。这项研究的结果是，1986年以前被归入Neonaviculopsis Locker和Martini属的硅胶凝物现在被认为是Bachmannocena diodon亚种的一部分。结节丛。

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A silicoflagellate plexus associated with Bachmannocena diodon subsp. nodosa from the Eastern Equatorial Pacific (Ocean Drilling Program Leg 138)

: Szaruga, A., McCartney, K. and Witkowski, J. 2022. A silicoflagellate plexus associated with Bachmannocena diodon subsp. nodosa from the Eastern Equatorial Pacific (Ocean Drilling Program Leg 138). Acta Geologica Polonica , 72 (2), 145–158. Warszawa. Upper Miocene (~6 Ma) sediments from a north-south transect of Ocean Drilling Program Holes 848B, 849B, 850B, 851B across the equator in the Eastern Pacific Ocean record an episode of unusual skeletal variability associated with the silicoflagellate Bachmannocena diodon subsp. nodosa (Bukry) Bukry, 1987. Skeletons in this plexus persisted for between 55,000 and 75,000 years and include an arch across a 2-sided basal ring, a highly unusual morphology for the genus. Groups of skeletal morphotypes were common within the plexus episode, and occur in a systematic sequence that is consistent between sites. As a result of this study, silicofla-gellates previously placed in the genus Neonaviculopsis Locker and Martini, 1986 are now considered part of the Bachmannocena diodon subsp. nodosa plexus.

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来源期刊

Acta Geologica Polonica 地学-地质学

CiteScore

1.70

自引率

18.20%

发文量

审稿时长

>12 weeks

期刊介绍： Acta Geologica Polonica publishes original and review papers on all aspects of basic geology, with particular focus on sedimentology, stratigraphy, palaeontology, regional geology, structural geology, and regional petrography. All papers are published in English.