Dataset of calcareous nannoplankton and smaller benthic foraminifera from a nummulitic accumulation (Bartonian, Eocene, Transylvanian Basin, Romania)

Data reported herein, have been obtained from the micropaleontological analysis of the middle Eocene (Bartonian) calcareous nannoplankton and smaller benthic foraminifera record from nine representative areas located in the Gilău and Meseș area from the Transylvanian Basin, Romania. The micropaleontological data comprise raw species counts (Tables 1, 2), relative abundances (Tables 3, 4) and ARCSIN-normalized values used to perform multivariate analysis (Tables 5, 6) for both calcareous nannoplankton and smaller benthic foraminiferal assemblages. The ARCSIN-normalized datasets (Tables 5, 6) include only taxa with more than ~2% relative abundance (Table 5, calcareous nannoplankton) and only taxa having more than 1% relative abundance (Table 6, smaller benthic foraminfiera ). The calculated abundance data of smaller benthic foraminiferal taxa, groups and microhabitats, the calculated benthic foraminifera dissolved oxygen index – BFOI are presented in Table 7, whilst the diversity indices of smaller benthic foraminifera are included in Table 8. Same background color in each table represents the same outcrop and the samples are stored in case of each outcrop in stratigraphic order (samples with the same style – italic and bold – belong to the same stratigraphic level). In the case of the calcareous nannoplankton datasets (Tables 1, 3, 5) the samples written with red had less than 50 specimens and they were excluded from the statistical analysis.本文所报道的数据集，源自对罗马尼亚特兰西瓦尼亚盆地（Transylvanian Basin）吉洛（Gilău）与梅塞什（Meseș）区域内9个典型点位的中始新世（巴顿阶（Bartonian））钙质超微浮游生物（calcareous nannoplankton）及小型底栖有孔虫（benthic foraminifera）记录开展的微古生物学分析（micropaleontological analysis）。本次数据集涵盖两类生物组合的原始物种计数（表1、表2）、相对丰度（表3、表4），以及用于多变量分析的反正弦（ARCSIN）标准化数值（表5、表6）。其中反正弦标准化数据集（表5、表6）仅纳入相对丰度约高于2%的分类单元（表5对应钙质超微浮游生物），以及相对丰度高于1%的分类单元（表6对应小型底栖有孔虫）。小型底栖有孔虫分类单元、类群及微生境的计算丰度数据，与底栖有孔虫溶解氧指数（BFOI）的计算结果均收录于表7；而小型底栖有孔虫的多样性指数则收录于表8。各表格中相同的背景色代表同一露头点位；所有样品均按地层顺序收纳于对应露头的样品箱中，其中格式为斜体与粗体的样品属于同一地层层级。针对钙质超微浮游生物数据集（表1、表3、表5），标注为红色的样品所含标本数量不足50件，因此被排除在统计分析之外。