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

Messelornithids and messelornithid-like birds from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK) 英国埃塞克斯郡沃尔顿-纳兹（Walton-the-Naze）早始新世伦敦粘土中的介壳虫鸟类和类似介壳虫鸟类的鸟类

IF 1.6 4区地球科学

Geobios Pub Date : 2024-07-15 DOI: 10.1016/j.geobios.2023.12.011

Gerald Mayr , Andrew C. Kitchener

{"title":"Messelornithids and messelornithid-like birds from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK)","authors":"Gerald Mayr , Andrew C. Kitchener","doi":"10.1016/j.geobios.2023.12.011","DOIUrl":"10.1016/j.geobios.2023.12.011","url":null,"abstract":"<div><div>We describe gruiform and gruiform-like birds from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK). One species belongs to the Messelornithidae and is classified as Nasiornis messelornithoides nov. gen., nov. sp.; the coracoid of this species resembles that of Bumbaniralla from the early Eocene of Mongolia. Another possible messelornithid species is tentatively assigned to the poorly known taxon Parvirallus Harrison and Walker, 1979, as ?P. incertus nov. sp. A further species is referred to the taxon Walbeckornis Mayr, 2007, as W. waltonensis nov. sp., and extends the geographical and temporal range of this taxon, which so far was only known from the Paleocene of Germany. Even though similarities between Walbeckornis and messelornithids were previously noted, a plesiomorphic morphology of the quadrate suggests a position of Walbeckornis outside crown group Gruiformes. Furthermore, all fossil taxa described in the present study lack a deeply concave facies articularis alularis (carpometacarpus), which we identify as a previously overlooked apomorphy of crown group Ralloidea. Therefore, resemblances between Walbeckornis and the Messelornithidae, which are the sister taxon of crown group Ralloidea, are likely to be plesiomorphic for a more inclusive clade.</div></div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"90 ","pages":"Pages 87-101"},"PeriodicalIF":1.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141691518","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

A new chemosynthetic community (ostracods, foraminifers, echinoderms) from Late Jurassic hydrocarbon seeps, south-eastern France Basin 法国盆地东南部晚侏罗世碳氢化合物渗漏区的新化学合成群落（桡足类动物、有孔虫、棘皮动物

IF 1.6 4区地球科学

Geobios Pub Date : 2024-06-01 DOI: 10.1016/j.geobios.2023.12.006

Marie-Béatrice Forel , Sylvain Charbonnier , Luka Gale , Nicolas Tribovillard , Pablo Martinez-Soares , Cristianini Trescastro Bergue , Felix M. Gradstein , Christian Gaillard

{"title":"A new chemosynthetic community (ostracods, foraminifers, echinoderms) from Late Jurassic hydrocarbon seeps, south-eastern France Basin","authors":"Marie-Béatrice Forel , Sylvain Charbonnier , Luka Gale , Nicolas Tribovillard , Pablo Martinez-Soares , Cristianini Trescastro Bergue , Felix M. Gradstein , Christian Gaillard","doi":"10.1016/j.geobios.2023.12.006","DOIUrl":"https://doi.org/10.1016/j.geobios.2023.12.006","url":null,"abstract":"<div>Hydrocarbon seeps represent some of the most extreme marine habitats but are also home to rich communities developed around chemosynthesis rather than photosynthesis. Here we describe the outcrop of Sahune (Drôme department, south-eastern France), that illustrates a new seeping site during the Late Jurassic (middle Oxfordian), as formally demonstrated by geochemical proxies. We report the associated fauna composed of foraminifers, radiolarians, crinoids, echinoids and ostracods that all point to seepage at bathyal depth. The foraminifer assemblage and the occurrence of the irregular echinoid Tithonia oxfordiana together point to a middle Oxfordian age. We provide an in-depth analysis of the ostracod community, which is the oldest so far reported in such environments. The new species Procytherura praecoquum may be cognate to the seepage site and could illustrate the oldest known example of pore clusters, sometimes proposed as representing ectosymbiosis. The Sahune assemblage demonstrates that cold seep ostracod communities were already a mixture of taxa from platform and deep-sea oligotrophic environments. The post-Jurassic diversification of ostracods at cold seeps was related to colonization events and diversification of families that have been inhabitants of such ecosystems at least since the Oxfordian. The Sahune record changes our current conception of the deep-sea colonization by the ostracods Tethysia and Procytherura that occurred earlier than traditionally considered.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"84 ","pages":"Pages 1-24"},"PeriodicalIF":1.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141298315","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

Multiproxy palaeoenvironmental reconstruction of the Bathonian Castelbouc sauropod tracksite (Causses Basin, southern France): Insight into a Middle Jurassic insular ecosystem 巴斯顿卡斯特布克长脚类动物足迹遗址（法国南部考斯盆地）的多代理古环境重建：洞察中侏罗世海岛生态系统

IF 1.6 4区地球科学

Geobios Pub Date : 2024-06-01 DOI: 10.1016/j.geobios.2023.12.007

Jean-David Moreau , Vincent Trincal , Benjamin Bourel , Marc Philippe , Romain Vullo , Alain Jacquet , Christophe Durlet , Marie-Béatrice Forel , Didier Néraudeau , Sylvain Charbonnier , Dahvya Belkacem

{"title":"Multiproxy palaeoenvironmental reconstruction of the Bathonian Castelbouc sauropod tracksite (Causses Basin, southern France): Insight into a Middle Jurassic insular ecosystem","authors":"Jean-David Moreau , Vincent Trincal , Benjamin Bourel , Marc Philippe , Romain Vullo , Alain Jacquet , Christophe Durlet , Marie-Béatrice Forel , Didier Néraudeau , Sylvain Charbonnier , Dahvya Belkacem","doi":"10.1016/j.geobios.2023.12.007","DOIUrl":"https://doi.org/10.1016/j.geobios.2023.12.007","url":null,"abstract":"<div>We report lignitic fossil rich-beds from the Bathonian Castelbouc sauropod tracksite (Castelbouc Cave N°4, Causses Basin, southern France). Showing the co-occurrence of amber with plant, vertebrate and invertebrate remains, they are a precious tool to reconstruct Middle Jurassic dinosaur ecosystems. A multiproxy approach combining sedimentology, petrology, mineralogy and palaeontology led to determine that these fossil rich-beds were deposited in a range of insular coastal palaeoenvironments. They include protected backshore areas such as freshwater/brackish ponds and brackish bay/lagoon showing co-occurrence of terrestrial and marine inputs. The backshore environments were particularly rich in ostracods (Darwinula sp., Fabanella bathonica) and gyrogonites of charophytes (Porochara douzensis). The abundance of conifer remains including leafy axes (Brachyphyllum), cones (cf. Classostrobus), wood (Brachyoxylon) and pollen grains (Classopollis) shows that ponds and bay/lagoon were bordered by conifer-dominated forests in which Cheirolepidiaceae were the main component. Such a rich and relatively diverse flora was probably an attractive source of food for megaherbivorous dinosaurs. Vertebrate microremains mostly consist of fish scales (Ginglymodi indet.) and crocodylomorph teeth (Atoposauridae indet.), two groups that are common components of Middle Jurassic paralic faunas. The palaeobotanical assemblage suggests a warm subtropical climate probably tropophilous with marked alternation between a wet and a dry season.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"84 ","pages":"Pages 65-82"},"PeriodicalIF":1.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141298318","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

Late Triassic floras from Guangdong, South China: Biostratigraphical context and palaeoenvironmental implications 华南广东晚三叠世植物群：生物地层背景与古环境意义

IF 1.6 4区地球科学

Geobios Pub Date : 2024-06-01 DOI: 10.1016/j.geobios.2023.12.003

Xiaoqing Zhang , Yongdong Wang , Chong Dong , Xiaoming Lin , Jianhua Jin

{"title":"Late Triassic floras from Guangdong, South China: Biostratigraphical context and palaeoenvironmental implications","authors":"Xiaoqing Zhang , Yongdong Wang , Chong Dong , Xiaoming Lin , Jianhua Jin","doi":"10.1016/j.geobios.2023.12.003","DOIUrl":"https://doi.org/10.1016/j.geobios.2023.12.003","url":null,"abstract":"<div>Triassic-Jurassic deposits are well developed in Guangdong Province, South China. In particular, the Upper Triassic coal-bearing strata which alternate between marine and terrestrial deposits yield diverse and abundant fossil plants, ammonites and bivalves. These strata provide a significant reference for the study of palaeoenvironmental variations in the lower latitude regions. In this paper, we review the major progress on Late Triassic floral studies in this area. Specifically, we compare the regional plant assemblages from different fossil sites in central and northern Guangdong which have been dated with marine fauna. 155 species belonging to 56 genera of fossil plants have been reported so far in northern and central Guangdong. The Late Triassic floras in Guangdong are mainly composed of Bennettitales and ferns, followed by horsetails, seed ferns, cycads, ginkgos and conifers. In ascending order, four regional plant fossil assemblages can be recognized in the Late Triassic deposits, namely the Pachypteris-Lindleycladus Assemblage (Julian), the Pterophyllum-Baiera Assemblage (late Julian), the Clathropteris-Otozamites Assemblage (Tuvalian), and the Danaeopsis-Anomozamites Assemblage (Rhaetian). In general, the Late Triassic climate in the Guangdong region was mainly humid and warm and either tropical or subtropical. The fossil plants corroborate palaeomagnetic evidence that the central and northern Guangdong region was located at approximately the same latitude as it is today and formed the southern coastline of the South China Block during the Late Triassic. Palaeogeographically, the transgression started at the end of the Julian and the south coastal terrane consisted of a western bay, a peninsula and an eastern bay. During the regression period, post-Rhaetian, the bays evolved into a gulf coastal plain.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"84 ","pages":"Pages 115-129"},"PeriodicalIF":1.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141298142","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

Chancelloriids from the Cambrian (Stage 4) Balang Lagerstätte of South China and a reappraisal of their diversification in South China 华南寒武纪（第四期）巴朗古城出土的蝶形目动物及其在华南的多样性再评价

IF 1.6 4区地球科学

Geobios Pub Date : 2024-06-01 DOI: 10.1016/j.geobios.2023.12.001

Hui Zhang , Qiu-Jun Wang , Cheng-Wan Zhang , Die-Die Luo , Xiu-Chun Luo , Yi-Fan Wang , De-Zhi Wang , Xing-Lian Yang

{"title":"Chancelloriids from the Cambrian (Stage 4) Balang Lagerstätte of South China and a reappraisal of their diversification in South China","authors":"Hui Zhang , Qiu-Jun Wang , Cheng-Wan Zhang , Die-Die Luo , Xiu-Chun Luo , Yi-Fan Wang , De-Zhi Wang , Xing-Lian Yang","doi":"10.1016/j.geobios.2023.12.001","DOIUrl":"https://doi.org/10.1016/j.geobios.2023.12.001","url":null,"abstract":"<div>Chancelloriids are an enigmatic group of Cambrian animals characterized by radially symmetrical bodies equipped with spiny sclerites. Although they were major components of many benthic communities, current understanding on how this group diversified during the Cambrian remains limited. Clarifying these confusions about the diversification of chancelloriids requires new information provided by new studies of previously described and/or new material. Considering the emerging scenario of chancelloriids, the sack-like chancelloriids from the Stage 4 Balang Lagerstätte are restudied on the basis of previous collections, which are herein separated from Chancelloria eros Walcott, 1920, and revised as Archiasterella acuminata nov. sp. and Chancelloriidae gen. et sp. indet. The Ar. acuminata specimen is well preserved and does show its scleritome and sclerite characters, while the Chancelloriidae gen. et sp. indet. specimen is poorly preserved and its scleritome and sclerite characters are difficult to distinguish. By combining information from previous studies and the present research, data on chancelloriid occurrences in South China indicate that chancelloriids had once diversified in the Cambrian South China, evidenced by high-level richness of sclerite-based taxa during the late Fortunian to the middle Stage 3, and of sclerite formulas during the late Stage 2 to the Wuliuan. The result is inconsistent with the recent viewpoint that there were two flourishing ages of chancelloriids in South China. Although more evidence is needed to support our results, the present study offers insights in understanding the evolutionary dynamics of chancelloriids.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"84 ","pages":"Pages 103-114"},"PeriodicalIF":1.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141298141","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

A review of Palaeogiraffa (Giraffidae, Mammalia) from the Vallesian of the Eastern Mediterranean 东地中海瓦利西亚的 Palaeogiraffa（长颈鹿科，哺乳动物）综述

IF 1.6 4区地球科学

Geobios Pub Date : 2024-06-01 DOI: 10.1016/j.geobios.2023.12.002

Kostantis Laskos, Dimitris S. Kostopoulos

{"title":"A review of Palaeogiraffa (Giraffidae, Mammalia) from the Vallesian of the Eastern Mediterranean","authors":"Kostantis Laskos, Dimitris S. Kostopoulos","doi":"10.1016/j.geobios.2023.12.002","DOIUrl":"https://doi.org/10.1016/j.geobios.2023.12.002","url":null,"abstract":"<div>Palaeogiraffa is a poorly understood giraffid genus from the Vallesian of Axios Valley (Northern Greece), Turkish Thrace and Central Turkey. The Axios Valley remains come from three non-contemporaneous Vallesian faunas from the localities: Pentalophos, Ravin de la Pluie, and Xirochori, whereas the Turkish remains come from the Vallesian faunas of Middle Sinap, Yulafli, and Küçükçekmece. Remains from Pentalophos and Ravin de la Pluie were described as congeneric with the Iberian Deccenatherium, although they were later attributed to a new, distinct genus known by three different species: Palaeogiraffa macedoniae, Palaeogiraffa pamiri, and Palaeogiraffa major. The type species of the genus, Pg. macedoniae, was based on the most abundant Pentalophos material, while the rest of the species was established mainly on size difference criteria. Here we provide a review of the Palaeogiraffa material in order to (i) test its validity, (ii) re-discuss hypotheses about the genus phylogenetic relationships with other Late Miocene giraffids, and (iii) re-explore intrageneric diversity and number of recognized species based on the available Eastern Mediterranean samples. We confirm Palaeogiraffa as a distinct genus from other Late Miocene giraffids based on its unique proportions, as well as its dental and postcranial morphology. Furthermore, we endorse the likelihood of Palaeogiraffa being phylogenetically linked to the sivatherine lineage, based mainly on its dental and metatarsal morphological features. The generic attribution of specimens from Xirochori, Ravin de la Pluie, Middle Sinap, Yulafli and Küçükçekmece to Palaeogiraffa is adequately supported by the present data. Nevertheless, the recognition of three species is more open to discussion, though they should be retained until more material is available.</div>","PeriodicalId":55116,"journal":{"name":"Geobios","volume":"84 ","pages":"Pages 25-43"},"PeriodicalIF":1.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141298316","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

Geobios最新文献