IF 1.6 4区地球科学

Geobios Pub Date : 2024-10-01 DOI: 10.1016/j.geobios.2024.08.003

Rodrigo L. Tomassini , Claudia I. Montalvo , José I. Cuitiño , María Susana Bargo , Sergio F. Vizcaíno

{"title":"Tuff deposits as preservational context for a Miocene continental mammal assemblage from Patagonia, Argentina","authors":"Rodrigo L. Tomassini , Claudia I. Montalvo , José I. Cuitiño , María Susana Bargo , Sergio F. Vizcaíno","doi":"10.1016/j.geobios.2024.08.003","DOIUrl":"10.1016/j.geobios.2024.08.003","url":null,"abstract":"<div><div>The CO tuff is one of the volumetrically largest volcaniclastic events so far recorded in the Early-Middle Miocene Santa Cruz Formation (Patagonian Argentina). It represents aeolian processes, related with westerlies, that reworked and transported enormous quantities of volcanic ash from the Andes into the continental interior that accumulated in fluvial floodplain deposits. This volcanic event generated a major environmental change at ∼17 Ma (Burdigalian) and hostile living conditions for the biota of the area, at least during the time of deposition. We performed here a comprehensive study including taxonomic, sedimentological, and taphonomic aspects of the mammal assemblage recovered from this tuff deposit. The assemblage is constituted by representatives of Microbiotheria, Paucituberculata, Folivora, Cingulata, Rodentia, Notoungulata, and Litopterna, reflecting a wide mammalian diversity. The formation of the assemblage can be linked to a normal attritional model, in which the death of the individuals and subsequent deposition and burial of their remains would have occurred gradually over time, simultaneously with the accumulation of volcanic ash, at the place of death or very close to it. The time between the death and burial would have been relatively short, in accordance with the rapid and continuous influx of volcanic ash to the depositional environment. This multidisciplinary study allows us to interpret and reconstruct the possible taphonomic pathways of the mammal assemblage and to provide novel information on this particular preservation context linked to volcanically-influenced fluvial environments.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"86 ","pages":"Pages 35-47"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Insights on the Upper Triassic Silves Group in Algarve Basin, Portugal: Palynological, paleophytogeography and paleoclimatology advances 葡萄牙阿尔加维盆地上三叠统西尔韦斯组的新发现：古植物学、古地理学和古气候学的进展

IF 1.6 4区地球科学

Geobios Pub Date : 2024-10-01 DOI: 10.1016/j.geobios.2024.08.001

Margarida Vilas-Boas , Zélia Pereira , Simonetta Cirilli , Paulo Fernandes

{"title":"New Insights on the Upper Triassic Silves Group in Algarve Basin, Portugal: Palynological, paleophytogeography and paleoclimatology advances","authors":"Margarida Vilas-Boas , Zélia Pereira , Simonetta Cirilli , Paulo Fernandes","doi":"10.1016/j.geobios.2024.08.001","DOIUrl":"10.1016/j.geobios.2024.08.001","url":null,"abstract":"<div><div>This paper presents the results of palynostratigraphic studies in the Silves Group in the Algarve Basin, Portugal. From bottom to top comprises the Silves Sandstones, the Silves Marl-Carbonate Evaporitic Complex, and the Volcano-Sedimentary Series. This study aims to detail the age of the Silves Group, bracketing the Triassic-Jurassic transition, using palynology. For this purpose, 250 samples were collected from 14 main sections. Previous results from a section above the Variscan unconformity, enabled to date the base of the Silves Sandstones and the onset of the Mesozoic sedimentary cycle in the Algarve Basin to lower Carnian. In this work, the top of the Silves Sandstones, containing Camerosporites secatus, Enzonalasporites vigens, Granuloperculatipollis rudis, Lagenella martinii, Patinasporites densus, Samaropollenites speciosus, and Vallasporites ignacii, is dated to the upper Carnian. The base of the Silves Marl-Carbonate Evaporitic Complex, consisting of Alisporites sp., Araucariacites australis, Classopollis meyerianus, Classopollis torosus, Paracirculina quadruplicis and Triadispora sp., indicates an upper Carnian age. The presence of Alisporites diaphanus, Araucariacites australis, Cerebropollenites macroverrucosus, Classopollis meyerianus, Classopollis torosus, Perinopollenites elatoides, Calamospora mesozoica, and Kraeuselisporites reissingeri allows to date the top of the Silves Marl-Carbonate Evaporitic Complex as upper Rhaetian-lower Hettangian. This study allows to date the Silves Group in the Algarve Basin from the lower Carnian to lower Hettangian (Triassic-Jurassic boundary) for the first time. The Carnian microflora provides new insights of the Onslow Microflora in the Western Tethys.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"86 ","pages":"Pages 49-64"},"PeriodicalIF":1.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new epifoliar melioloid fungus from the Siwalik (Miocene) of Himachal sub-Himalaya and its palaeoecological implications 喜马偕尔亚喜马拉雅地区 Siwalik（中新世）出土的一种新的外生瓜耳真菌及其古生态学意义

IF 1.6 4区地球科学

Geobios Pub Date : 2024-10-01 DOI: 10.1016/j.geobios.2024.06.001

Sampa Kundu, Mahasin Ali Khan

引用次数: 0

Updating the fauna and age of the Neogene-Quaternary large mammal sites of Greece 更新希腊新近纪-第四纪大型哺乳动物遗址的动物群和年龄

IF 1.6 4区地球科学

Geobios Pub Date : 2024-08-01 DOI: 10.1016/j.geobios.2023.12.010

George D. Koufos

{"title":"Updating the fauna and age of the Neogene-Quaternary large mammal sites of Greece","authors":"George D. Koufos","doi":"10.1016/j.geobios.2023.12.010","DOIUrl":"10.1016/j.geobios.2023.12.010","url":null,"abstract":"<div>The Neogene-Quaternary continental deposits cover large areas of Greece and several fossil mammal sites have been discovered in the country. There are several collections of large fossil mammals for this time span, which provide important data for the fauna biochronology, correlations, palaeoecology and palaeogeography of the area. The last lists with the fauna, age and biochronology of the Greek large mammal localities were given in 2006 for the Neogene and in 2001 for the Quaternary. Extensive research over the last twenty years provided several new localities, and many data and information were published. Therefore, an updating of the lists was more than necessary, and the present article deals with it; it covers the time span untill June 2023. Lists include all faunal information as the systematic classification, chronology, biostratigraphic correlation of the faunas, and main bibliography. It is worth mentioning that some of the Greek localities are key-localities for the Eastern Mediterranean region, e.g., Pikermi, Axios Valley, Villafranchian collection. These faunas are important for the comparison and identification of new collections, correlations, palaeoecology, and palaeogeography of Neogene European mammals.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"85 ","pages":"Pages 35-57"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The euphyllophytes of a new Givetian plant assemblage from the eastern Anti-Atlas, Morocco 摩洛哥安特阿特拉斯（Anti-Atlas）东部的一个新的给地植物群落的 euphyllophytes

IF 1.6 4区地球科学

Geobios Pub Date : 2024-08-01 DOI: 10.1016/j.geobios.2023.12.008

Brigitte Meyer-Berthaud , Candys Bert , Anne-Laure Decombeix , Marion Lacand , Merlin Ramel , Ralph Thomas Becker , Christian Klug , Ahmed El Hassani , Abdelfatah Tahiri

{"title":"The euphyllophytes of a new Givetian plant assemblage from the eastern Anti-Atlas, Morocco","authors":"Brigitte Meyer-Berthaud , Candys Bert , Anne-Laure Decombeix , Marion Lacand , Merlin Ramel , Ralph Thomas Becker , Christian Klug , Ahmed El Hassani , Abdelfatah Tahiri","doi":"10.1016/j.geobios.2023.12.008","DOIUrl":"10.1016/j.geobios.2023.12.008","url":null,"abstract":"<div>The Middle Devonian is a transitional period for the first vascular plants, which acquire modern vegetative and reproductive structures, diversify considerably and, within the euphyllophytes, evolve the first representatives of modern plant groups, the monilophytes and lignophytes. However, the dynamics of this diversification across the different paleocontinents remains obscure, particularly within Gondwana. The upper Givetian locality of Oum el Jerane, in southeastern Morocco, has yielded a new assemblage of anatomically preserved plant remains whose description contributes to a better understanding of the floras of the northern margin of Gondwana during the Middle Devonian. The euphyllophytes include one iridopterid, Arachnoxylon minor, two cladoxylopsids, one of which represents the new genus Jerana, and two aneurophytales affiliated with the genus Triloboxylon. The cladoxylopsid remains from Oum el Jerane correspond to relatively small plants compared to the well-known coeval cladoxylopsids of Laurussia. Compared to the taxonomic composition of the four phytochoria recently defined for the Middle Devonian, the Oum el Jerane plant assemblage corresponds to the ‘subtropical’ phytochorion, which is close to the ‘Laurussia’ phytochorion, but which would correspond to drier environmental conditions.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"85 ","pages":"Pages 58-78"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141701658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biogeographical patterns of the porcelaneous larger foraminifer Alveolinella quoyi through the integration of fossil data 通过化石数据的整合研究大型有孔虫Alveolinella quoyi的生物地理模式

IF 1.6 4区地球科学

Geobios Pub Date : 2024-08-01 DOI: 10.1016/j.geobios.2024.05.002

Davide Bassi , Yasufumi Iryu , Johannes Pignatti , Kazuhiko Fujita , Willem Renema

{"title":"Biogeographical patterns of the porcelaneous larger foraminifer Alveolinella quoyi through the integration of fossil data","authors":"Davide Bassi , Yasufumi Iryu , Johannes Pignatti , Kazuhiko Fujita , Willem Renema","doi":"10.1016/j.geobios.2024.05.002","DOIUrl":"10.1016/j.geobios.2024.05.002","url":null,"abstract":"<div>In the present-day Indo-Pacific coral-reef settings two genera of alveolinoidean porcelaneous larger benthic foraminifera (LBF) occur, namely Alveolinella and Borelis. Alveolinella is represented by a single species, A. quoyi, whose northernmost record is in Okinawa-jima (central Ryukyu Islands, Japan). Although the Indo-Pacific area, and especially the Coral Triangle, is a biodiversity hotspot since the Early Miocene, in-depth investigation on fossil representatives of present-day LBF is limited to a few taxa. To help bridge this knowledge gap, the palaeobiogeographical dynamics of A. quoyi is assessed. Analysis of data from the palaeontological literature shows that its first appearance datum is from the Tortonian (Late Miocene) of East Kalimantan and Papua New Guinea. In the Pliocene–Pleistocene the Indonesian Throughflow constrained the species within the Central Indo-Pacific. Finally, during the Late Pliocene the northward migrants arrived in the shallow-water carbonate settings of Okinawa-jima where the species is still thriving.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"85 ","pages":"Pages 1-9"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S001669952400041X/pdfft?md5=7803f5f4015138bd39469e833fe9ef06&pid=1-s2.0-S001669952400041X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141690711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conifer fossil woods from the Upper Cretaceous (Neuquén Group) of Mendoza Province, Argentina 阿根廷门多萨省上白垩世（内乌肯组）的针叶树化石林

IF 1.6 4区地球科学

Geobios Pub Date : 2024-08-01 DOI: 10.1016/j.geobios.2024.05.001

Carlos Daniel Greppi , Magalí Potenzoni , Roberto R. Pujana , Maximiliano Naipauer , Leandro C.A. Martínez

引用次数: 0

Biostratigraphic, palaeoenvironmental and palaeobiogeographic implications of bryozoan fauna from the Upper Devonian sequences of Armenia 亚美尼亚上泥盆纪岩层中的贝类动物群的生物地层学、古环境和古生物地理学意义

IF 1.6 4区地球科学

Geobios Pub Date : 2024-08-01 DOI: 10.1016/j.geobios.2024.02.001

{"title":"Biostratigraphic, palaeoenvironmental and palaeobiogeographic implications of bryozoan fauna from the Upper Devonian sequences of Armenia","authors":"","doi":"10.1016/j.geobios.2024.02.001","DOIUrl":"10.1016/j.geobios.2024.02.001","url":null,"abstract":"<div>This paper presents the first contribution to the study of bryozoans from the Frasnian–lower Famennian successions of Armenia. The latter were examined in two distinct localities (Ertych and Noravank) of Central Armenia; abundant fragments of branched ramose and encrusting bryozoans were observed in them, belonging to the orders Trepostomata and Cryptostomata. Their taxonomic assessment led us to recognize four species: two cryptostomes – Euthyrhombopora tenuis Ernst et al., 2017 and Bigeyella indigena (Morozova and Weiss in Morozova et al., 2002) from the Noravank section (Frasnian) – and two trepostomes – Eostenopora sp. and Eridotrypella sp. from the Ertych section (lower Famennian). No cystoporate and fenestrate bryozoans were observed. The identified bryozoans are characteristic of shallow marine or middle shelf paleoenvironments. The presence of Euthyrhombopora tenuis and Bigeyella indigena suggests palaeobiogeographic affinities to contemporary faunas from Iran and Poland, respectively. In addition to our results, an overview of previously published data reveals that the upper Famennian assemblages of bryozoans from the Lesser Caucasus contain more endemic species than those known from the Frasnian and the lowermost Famennian.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"85 ","pages":"Pages 10-18"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0016699524000275/pdfft?md5=868faefc039504ec01d1221dd81ba90b&pid=1-s2.0-S0016699524000275-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141051451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A revisit to the Early Pliocene site of Abla (Guadix-Baza Basin, southern Spain) 重访上新世早期的阿布拉遗址（西班牙南部瓜迪克斯-巴萨盆地）

IF 1.6 4区地球科学

Geobios Pub Date : 2024-08-01 DOI: 10.1016/j.geobios.2023.12.009

Pedro Piñero , Jordi Agustí , Hugues-Alexandre Blain , María Teresa Alberdi , Ángel Blanco Lapaz , Marc Furió

{"title":"A revisit to the Early Pliocene site of Abla (Guadix-Baza Basin, southern Spain)","authors":"Pedro Piñero , Jordi Agustí , Hugues-Alexandre Blain , María Teresa Alberdi , Ángel Blanco Lapaz , Marc Furió","doi":"10.1016/j.geobios.2023.12.009","DOIUrl":"10.1016/j.geobios.2023.12.009","url":null,"abstract":"<div>The Guadix-Baza Basin (southern Spain) displays one of the best continental records from the Late Miocene to the Middle Pleistocene in western Europe, with many localities of fossil small mammals in a quite complete and continuous stratigraphic sequence. The Late Miocene continentalization of the Guadix-Baza Basin was firstly mentioned in the 1980s based on the presumed presence of Hipparion gromovae granatensis at the site of Abla (Almería province). Subsequent discoveries of late Turolian deposits confirmed the Late Miocene continentalization of the basin. The interest in the Abla site led to a second sampling campaign to look for microvertebrate fossils, which proved successful. In this paper, a complete taxonomic study of the novel microvertebrate fauna from Abla is presented, providing updated information on the age of the locality. Representatives of the vertebrate families Cyprinidae, Alytidae, Anguidae, Soricidae, Cricetidae, and Muridae have been identified. The presence of Stephanomys specimens exceeding the size of latest Miocene-earliest Pliocene species allows us to correlate the Abla site with the Early Pliocene (Ruscinian), a younger age than initially stated. A qualitative paleoecological interpretation based on the herpetofauna suggests the dominance of open environments with presence of permanent water bodies during the deposition of the Abla site, under warmer and more humid climate conditions than today in the Guadix-Baza Basin. A revision of the Hipparion remains from this locality showed that the sample is closer to Hipparion fissurae than to the initially assigned species.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"85 ","pages":"Pages 79-89"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141714101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Description of the wing spur in the subfossil Malagasy lapwing, Vanellus madagascariensis (Aves: Charadriiformes, Charadriidae): Insights into some of its possible life history traits and why it is extinct 描述亚化石马达加斯加瓣蹼蝶 Vanellus madagascariensis（Aves: Charadriiformes, Charadriidae）的翅距：洞察其可能的生活史特征及其灭绝的原因

IF 1.6 4区地球科学

Geobios Pub Date : 2024-08-01 DOI: 10.1016/j.geobios.2024.02.002

Steven M. Goodman , Harimanjaka A.M. Rasolonjatovo

{"title":"Description of the wing spur in the subfossil Malagasy lapwing, Vanellus madagascariensis (Aves: Charadriiformes, Charadriidae): Insights into some of its possible life history traits and why it is extinct","authors":"Steven M. Goodman , Harimanjaka A.M. Rasolonjatovo","doi":"10.1016/j.geobios.2024.02.002","DOIUrl":"10.1016/j.geobios.2024.02.002","url":null,"abstract":"<div>We report on a subfossil carpometacarpus of an extinct species of lapwing, Vanellus madagascariensis, restricted to Madagascar and inferred to be less than 3,000 years old. Lapwings, comprising 24 species in the New and Old World, are not recorded in the modern Malagasy avifauna. Members of this genus are often well-adapted to human induced habitat modifications. Material of this species has been recovered from three subfossil sites, each site with a single element, in the southwest of the island, including two humeri and a carpometacarpus. The carpal spur of V. madagascariensis was notably more developed than any living species of lapwing. It is presumed that these formidable armaments were employed to defend territories and hinder predation on nest contents and young. Large-scale desiccation in southwestern Madagascar starting about 3,000 years ago would have had a direct impact on local freshwater aquatic environments, in turn diminishing local habitat for this species, and ultimately leading to its extinction.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"85 ","pages":"Pages 19-24"},"PeriodicalIF":1.6,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S001669952400038X/pdfft?md5=c2c14c3c3b138556cc29bc5cfa71beb0&pid=1-s2.0-S001669952400038X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141707958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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