Organic walled dinoflagellate cyst biostratigraphy of the Bartonian/Priabonian GSSP Alano di Piave section, NE Italy

IF 1.7 3区地球科学 Q2 PALEONTOLOGY Review of Palaeobotany and Palynology Pub Date : 2024-11-05 DOI:10.1016/j.revpalbo.2024.105233

Alina I. Iakovleva

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Abstract

The present paper augments the multidisciplinary stratigraphic analysis of the Global Stratotype Section and Point (GSSP) Bartonian-Priabonian boundary Alano di Piave section (NE Italy). Twenty-seven stratigraphically signficant organic walled dinoflagellate cyst events, calibrated against the magnetostratigraphic polarity timescale, and earlier established zonations based on calcareous microfossils are recognized. Among these events the first occurrence (FO) of Oligokolpoma agniniae sp. nov. (∼ 8 m below the GSSP boundary), and the FO of Reticulatosphaera actinocoronata (∼ 8 m above the GSSP boundary) may be considered as additional stratigraphic indicators for the Bartonian-Priabonian boundary. Six new potentially stratigraphically significant species Heteraulacacysta alanoensis sp. nov., Heteraulacacysta reticulata sp. nov., Impagidinium bellunoensis sp. nov., Impagidinium veneziaense sp. nov., Lophocysta domenicorioi sp. nov., and Oligokolpoma agniniae sp. nov. are formally described.

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意大利东北部巴顿纪/普里阿本纪 GSSP Alano di Piave 断面的有机壁甲藻囊生物地层学

本文扩充了对全球地层剖面和点（GSSP）巴尔特期-普里亚布期边界 Alano di Piave 断面（意大利东北部）的多学科地层分析。根据磁极地层极性时间尺度和早期根据钙质微化石建立的分区，确认了 27 个具有地层意义的有机壁甲藻囊事件。在这些事件中，Oligokolpoma agniniae sp.nov.的首次出现（FO）（GSSP 边界下 8 米）和 Reticulatosphaera actinocoronata 的 FO（GSSP 边界上 8 米）可被视为巴顿期-前海盆期边界的额外地层指标。正式描述了六个可能具有重要地层意义的新物种：Heteraulacacysta alanoensis sp.nov.、Heteraulacacysta reticulata sp.nov.、Impagidinium bellunoensis sp.nov.、Impagidinium veneziaense sp.nov.、Lophocysta domenicorioi sp.nov.和 Oligokolpoma agniniae sp.nov.。

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来源期刊

Review of Palaeobotany and Palynology 地学-古生物学

CiteScore

3.50

自引率

21.10%

发文量

149

审稿时长

6 months

期刊介绍： The Review of Palaeobotany and Palynology is an international journal for articles in all fields of palaeobotany and palynology dealing with all groups, ranging from marine palynomorphs to higher land plants. Original contributions and comprehensive review papers should appeal to an international audience. Typical topics include but are not restricted to systematics, evolution, palaeobiology, palaeoecology, biostratigraphy, biochronology, palaeoclimatology, paleogeography, taphonomy, palaeoenvironmental reconstructions, vegetation history, and practical applications of palaeobotany and palynology, e.g. in coal and petroleum geology and archaeology. The journal especially encourages the publication of articles in which palaeobotany and palynology are applied for solving fundamental geological and biological problems as well as innovative and interdisciplinary approaches.