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Note on A Peculiar Fusuline Sample from the Pennsylvanian of the Cantabrian Zone (Spain): Observations and Intriguing Questions 关于来自坎塔布连带(西班牙)宾夕法尼亚的一个特殊的Fusuline样品的注释:观察和有趣的问题
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-04-01 DOI: 10.2113/gsjfr.52.2.108
E. Villa, K. Ueno, O. Merino-Tomé
This paper discusses four peculiar cases of foraminiferal occurrences in a limestone bed of the Pennsylvanian (Myachkovian, upper Moscovian) of the Cantabrian Zone (northern Spain), which raise questions as to their possible interpretation: (1) the true range of the genus Pseudostaffella; (2) the possible marked tendency towards a thickness increase shown by the wall of the genus Putrella; (3) the origin of the apparent deformations observed in part of the fusulines, especially in some Beedeina specimens, here interpreted as alterations probably due to a foraminiferal disease; and (4) the observations made on clusters of recently found fused foraminifera, which invalidate one of the hypotheses so far provided to explain these aggregations while opening perspectives towards new interpretations. A new species, Putrella crassa Villa & Ueno, is introduced.
本文讨论了坎塔布连带(西班牙北部)宾夕法尼亚系(米亚奇科夫系,上莫斯科系)石灰岩层中有孔虫的四个特殊情况,并对它们可能的解释提出了一些问题:(1)Pseudostaffella属的真实范围;(2) purella属植物的壁可能有明显的增厚趋势;(3)在部分绒毛中观察到的明显变形的起源,特别是在一些Beedeina标本中,这里解释为可能由于有孔虫疾病引起的改变;(4)对最近发现的融合有孔虫群的观察,推翻了迄今为止解释这些聚集的一个假设,同时为新的解释开辟了新的视角。介绍了一新种purella crassa Villa & Ueno。
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引用次数: 0
Obituary for Dr. Alberto D. Albani 1935-2021 阿尔贝托·d·阿尔巴尼博士讣告1935-2021
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-04-01 DOI: 10.2113/gsjfr.52.2.120
B. Hayward, Rossana Serandrei-Barbero
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引用次数: 0
Obituary for Professor John W. Murray, B.Sc., Ph.D., D.Sc., A.R.C.S., D.I.C., F.G.S. 1937-2021 John W.Murray教授,理学学士,博士,理学博士,A.R.C.S.,D.I.C.,F.G.S.的讣告1937-2021
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-04-01 DOI: 10.2113/gsjfr.52.2.122
F. Gregory, R. Schiebel, E. Alve
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引用次数: 0
Benthic Foraminifera of Tropical Estuarine-Lagoonal-Bays System, in the Suape Harbor, Brazil: A Case Study 巴西苏普港热带河口-泻湖-海湾系统底栖有孔虫:个案研究
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-01-20 DOI: 10.2113/gsjfr.52.1.4
Taiana Regina Silva de Oliveira, L. D. dos Santos, P. Eichler, C. Barker, R. Barcellos
The Suape Industrial Port Complex is one of the main Brazilian public ports that has caused several geomorphological changes in Ipojuca and Suape estuarine-lagoonal-bays since its construction. The present study deals with the first status on the Suape port ecosystem, recorded from 41 sediment samples throughout the Massangana/Tatuoca and Ipojuca/Merepe estuarine systems. Species diversity values are higher in the seaward part of the bays and decreases toward the inner parts. The dominance of Ammonia tepida in the inner portions of the bays is indicative of environmental instability and pollution of coastal waters. Eggerella spp., unusual in Brazilian fauna, was present only in the innermost portion of the Tatuoca estuary, in the dredged channel, where heavy metal impacts have been reported. Amphistegina gibbosa, Triloculina oblonga, and Quinqueloculina lamarckiana are represented on the outside of the bays and are indicative of high hydrodynamic marine environments. The Ipojuca and Merepe rivers presented the highest ecological index, possibly attributed to the marine and terrestrial/mangrove influence for the region. We infer that geomorphological transformation caused by the Suape Port installation modified and established environments with distinct characteristics, mainly in the Suape Bay dredged area, indicative of possible eutrophication of this environment. The new data may be useful for determining environmental conditions and establishing new ways to monitor the consequences of anthropogenic interference and dredging in the Massangana/Tatuoca and Ipojuca/Merepe estuarine systems.
苏阿佩工业港口综合体是巴西主要的公共港口之一,自建成以来,它在伊波朱卡和苏阿佩河口泻湖湾造成了几次地貌变化。本研究涉及苏阿佩港生态系统的首次状况,记录了整个马桑加纳/塔托卡和伊波朱卡/梅雷佩河口系统的41个沉积物样本。物种多样性值在海湾的向海部分较高,而在海湾内部则有所下降。海湾内部氨斑虫的优势表明环境不稳定和沿海水域污染。Eggerella spp.在巴西动物群中不常见,仅存在于塔托卡河口的最内部,疏浚河道中,据报道那里有重金属影响。海湾外侧有长臂猿、oblonga三眼虫和lamarckiana五眼虫,它们表明了高水动力海洋环境。Ipojuca河和Merepe河的生态指数最高,这可能是由于该地区受到海洋和陆地/红树林的影响。我们推断,苏阿佩港设施引起的地貌变化改变并建立了具有明显特征的环境,主要发生在苏阿佩湾疏浚区,表明该环境可能富营养化。新数据可能有助于确定环境条件,并建立新的方法来监测人为干扰和疏浚对马桑加纳/塔托卡和伊波朱卡/梅雷佩河口系统的影响。
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引用次数: 1
Urbanellina, New Name for the Mississippian Foraminiferal Genus Urbanella Malakhova, 1963, Emended Brenckle, 1997 Urbanellina,密西西比有孔虫属Urbanella Malakhova的新名称,1963,订正Brenckle, 1997
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-01-20 DOI: 10.2113/gsjfr.52.1.57
P. Brenckle
In a recent online paper Vachard & Le Coze (2021) pointed out that the Mississippian foraminifer Urbanella Malakhova, 1963, is a homonym of a protozoan described by Schepotieff (1912). Vachard & Le Coze (2021) proposed that Malakhova's genus name be replaced by Banffella Mamet, 1970, that they consider to be a junior synonym as suggested by Reitlinger (1981). Loeblich & Tappan (1987) rejected that synonymy, a conclusion supported by a later morphological study of Urbanella (Brenckle, 1997). Urbanella and Banffella, based on comparison of their type species (Quasiendothyra urbanaMalakhova, 1954, and Endothyra? banffensisMcKay & Green, 1963), share almost no morphological features and are not synonymous as discussed in the following paragraphs. A new name Urbanellina is proposed herein to replace the homonym Urbanella Malakhova, 1963.
在最近的一篇在线论文Vachard & Le Coze(2021)指出,1963年的密西西比有孔虫Urbanella Malakhova与Schepotieff(1912)描述的一种原生动物同音。Vachard & Le Coze(2021)建议将Malakhova的属名替换为Banffella Mamet(1970),他们认为这是Reitlinger(1981)建议的初级同义词。Loeblich和Tappan(1987)拒绝了这个同义词,这一结论得到了后来对Urbanella的形态学研究的支持(Brenckle, 1997)。Urbanella和Banffella,基于它们的模式种(Quasiendothyra urbanaMalakhova, 1954)和Endothyra?banffensisMcKay & Green, 1963),几乎没有形态学特征,也不像下文所讨论的那样是同义词。本文提出了一个新的名字Urbanellina,以取代同音词Urbanella Malakhova, 1963。
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引用次数: 0
Can Areas of High Alkalinity Freshwater Discharge Provide Potential Refugia for Marine Calcifying Organisms? 高碱度淡水排放区能否为海洋钙化生物提供潜在的避难所?
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-01-20 DOI: 10.2113/gsjfr.52.1.60
K. E. Amergian, S. Beckwith, C. Gfatter, C. Selden, P. Hallock
The Springs Coast of Florida, USA (northeast Gulf of Mexico), includes an extensive system of springs and spring-fed streams that discharge billions of liters of water daily. The spring waters have high alkalinity and high calcium concentrations due to the Paleogene limestone lithology of this region. Benthic foraminifers are abundant on the shallow shelf, including Archaias angulatus which hosts chlorophyte symbionts. This study was motivated by the hypothesis that areas of discharge from limestone lithofacies may provide refugia for calcifying organisms during ocean acidification. Environmental data and sediment samples were available from 41 sites at depths <8 m. Benthic foraminiferal species identified (142) included 65 porcelaneous, 65 hyaline, and 12 agglutinated taxa, with 13 species sufficiently common to make up ≥2% total relative abundance. Overall, 58% of the specimens were porcelaneous and most of the remainder were hyaline. Smaller miliolids dominated in samples from most of the inshore polyhaline sites (22–30), while hyaline taxa co-dominated the more offshore sites (salinities >30), representing a distribution reversal compared to previous reports from Gulf of Mexico coastal habitats. The elevated alkalinity and calcium ion concentrations associated with freshwater discharge from limestone lithofacies allows Ar. angulatus and small miliolids to thrive in polyhaline waters.
美国佛罗里达州的斯普林斯海岸(墨西哥湾东北部)包括一个由泉水和泉水补给的溪流组成的庞大系统,每天排放数十亿升水。由于该地区的古近系石灰岩岩性,泉水具有高碱度和高钙浓度。浅大陆架上有丰富的底栖有孔虫,包括拥有叶绿素共生体的角纹Archaias angulatus。这项研究的动机是假设石灰岩岩相的排泄区域可能在海洋酸化过程中为钙化生物提供避难所。环境数据和沉积物样本可从41个地点(30)深处获得,与之前墨西哥湾沿海栖息地的报告相比,分布发生了逆转。石灰岩岩相的淡水排放导致碱度和钙离子浓度升高,这使得阿棱藻和小粟粒菌能够在多盐水中茁壮成长。
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引用次数: 6
New Records of Caudriella Haman and Huddleston from the Middle and Late Eocene of Neo-Tethys: Taxonomic and Palaeobiogeographic Implications 新特提斯始新世中晚期Caudriella Haman和Huddleston的新记录:分类和古生物地理意义
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-01-20 DOI: 10.2113/gsjfr.52.1.21
E. Özcan, A. O. Yücel, S. Mitchell, J. Pignatti, M. Simmons, A. Okay, Levent Sina Erkızan, Münire Nur Gültekin
The middle to upper Eocene mixed carbonate-clastic and siliciclastic deposits of the Şevketiye and Keşan formations in northwest Turkey yielded unique assemblages of larger benthic foraminifera, some displaying a typical orbitoidiform test, not comparable to any known taxa in the Palaeogene of the Neo-Tethys. These specimens with a flat, discoidal test, occasionally with an indistinct central depression, possess a central layer of equatorial chambers/chamberlets displaying a cyclical (orbitoidal) growth pattern and thick lateral layers with numerous chamberlets. The megalospheric embryonic apparatus possesses three small chambers (a triconch, the chambers of which are separated by notably thin walls), followed by a large auxiliary chamberlet. These specimens closely correspond to the genus Caudriella Haman and Huddleston and its type-species Margaritella ospinae (Caudri) that has only previously been reported with confidence from the Caribbean region, notably the type locality within the middle Eocene Punta Mosquito Formation at Margarita Island off Venezuela. Caudriella at its type locality also possesses a trilocular embryonic apparatus, which was incorrectly interpreted as arranged in a rectilinear or slightly curved row. The diagnosis of Caudriella is emended and considering the similarities in their equatorial sections with closely associated Linderina Schlumberger, a comparison of their embryonic-nepionic stages is given from the same deposits in NW Turkey and with those from the middle Eocene of the Sulaiman Range (Pakistan) and Kutch (India). A new record of primitive Caudriella is presented from Jamaica. The palaeobiogeographic distribution of Caudriella is reconsidered, being recorded from both the American/Caribbean and the Western Neo-Tethys bioprovinces. Limited data suggest eastward directed dispersal of the genus, even though this would be counter to most of the prevailing surface currents during the Eocene.
土耳其西北部的Şevketiye和Keşan地层的中上始新世混合碳酸盐碎屑和硅碎屑沉积物产生了独特的大型底栖有孔虫组合,其中一些表现出典型的球状测试,与新特提斯古近纪的任何已知分类群都不可比。这些标本具有平坦的盘状测试,偶尔有模糊的中央凹陷,具有赤道室/室的中央层,显示出周期性(眶状)生长模式,以及具有大量室的厚侧层。巨球胚胎器有三个小腔(三腔,腔之间有明显的薄壁),然后是一个大的辅助腔。这些标本与Caudriella Haman属和Huddleston属及其模式种Margaritella ospinae(Caudri)密切对应,后者此前仅在加勒比海地区可靠报道,尤其是委内瑞拉附近Margarita岛始新世中期Punta Mosquito组内的模式区。Caudriella在其典型位置也有一个三眼胚胎器,被错误地解释为排列成直线或稍微弯曲的一排。对Caudriella的诊断进行了校正,并考虑到其赤道剖面与密切相关的Linderina Schlumberger的相似性,对土耳其西北部的同一矿床以及苏莱曼山脉(巴基斯坦)和库奇(印度)始新世中期的矿床的胚胎棉结期进行了比较。在牙买加发现了一个原始Caudriella的新记录。重新考虑了Caudriella的古生物地理分布,记录于美洲/加勒比和西部新特提斯生物区。有限的数据表明,该属向东扩散,尽管这与始新世的大多数主流地表洋流相反。
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引用次数: 2
Larger Benthic Foraminifera and Microfacies of Late Paleocene - Early Eocene Sections in Meghalaya, Northeast India 印度东北部梅加拉亚邦晚古新世-早始新世剖面的大型底栖有孔虫和微相
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-01-20 DOI: 10.2113/gsjfr.52.1.40
Christer Dominique Pereira, S. Khanolkar, Santanu Banerjee, E. Özcan, P. Saraswati
The Late Paleocene-Early Eocene sections from Lakadong Limestone (Mawmluh Quarry) and Umlatdoh Limestone (Komorrah Quarry) in Meghalaya, Northeast India were examined for larger benthic foraminiferal microfacies and carbon isotopes. We generated high-resolution age models using larger benthic foraminifera biostratigraphy and recorded the change in microfacies. The LBF microfacies in SBZ 3 (∼58–60.7 Ma) and SBZ 4 (56–58Ma) is dominated by Miscellanea, Glomalveolina, Ranikothalia, orthophragminids, dasycladalean green algae and coralline red algae, indicating that deposition occurred within inner to mid-ramp environments. An abrupt shift in the depositional setting from open marine Lakadong Limestone to restricted marine Lakadong Sandstone across the PETM possibly indicates major changes in hydrological cycle during the extreme warmth that followed the PETM. The marine sedimentation continued during the Early Eocene (SBZ 7–9 corresponding to 55.1–52.8 Ma) within Meghalaya that led to the formation of Umlatdoh Limestone dominated by Halimeda, Alveolina, and miliolids. The larger foraminiferal extinction and origination in the Meghalaya basin is marked by the extinction of late Palaeocene Ranikothalids, Glomalveolinids, dominating the Lakadong Limestone and the dominance of Alveolinids and Discocylinids in the early Eocene Umlatdoh Limestone.
对印度东北部梅加拉亚邦Lakadong石灰岩(Mawmluh采石场)和Umlatdoh石灰岩(Komorrah采石场)的晚古新世-早始新世剖面进行了大型底栖有孔虫微相和碳同位素研究。我们使用更大的底栖有孔虫生物地层学生成了高分辨率的年龄模型,并记录了微相的变化。sbz3 (~ 58 ~ 60.7 Ma)和sbz4 (56 ~ 58ma)的LBF微相以杂藻、Glomalveolina、Ranikothalia、orthophragminids、dasycladalean绿藻和珊瑚红藻为主,表明沉积发生在斜坡内至中斜坡环境。沉积环境从开放海相拉孔洞灰岩到封闭海相拉孔洞砂岩跨越始新世纪的突变,可能表明始新世纪之后极端温暖时期的水文循环发生了重大变化。早始新世(SBZ 7-9,对应55.1-52.8 Ma),梅加拉亚邦持续海相沉积,形成了以halimmeda、Alveolina和百万粒岩为主的Umlatdoh灰岩。在梅加拉亚盆地,以晚古新世Ranikothalids和Glomalveolinids的灭绝和早始新世Umlatdoh石灰岩的Alveolinids和discocylinder的灭绝为标志,表明了更大的有孔虫灭绝和起源。
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引用次数: 5
2021 Joseph A. Cushman Award Winner: Karen Luise Knudsen 2021年约瑟夫·A·库什曼奖得主:Karen Luise Knudsen
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2022-01-20 DOI: 10.2113/gsjfr.52.1.1
M. Seidenkrantz, H. Filipsson
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引用次数: 0
ObituaryProf. M. S. Srinivasan (09-10-1938 to 29-04-2021) ObituaryProf。斯里尼瓦桑(09-10-1938至29-04-2021)
IF 1.1 4区 地球科学 Q4 PALEONTOLOGY Pub Date : 2021-10-29 DOI: 10.2113/gsjfr.51.4.332
A. Singh
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引用次数: 0
期刊
Journal of Foraminiferal Research
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