Geodiversitas最新文献_第6页

Étude d'un assemblage original de microvertébrés du Pléistocène moyen du nord-est de l'Algérie (Ben Kérat, Oued Zenati) et description de deux nouveaux muridés 阿尔及利亚东北部中更新世微脊椎动物原始组合的研究(Ben kerat, Oued Zenati)和两个新的murids的描述

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2022-02-17 DOI: 10.5252/geodiversitas2022v44a8

Emmanuelle Stoetzel, M. Pickford

{"title":"Étude d'un assemblage original de microvertébrés du Pléistocène moyen du nord-est de l'Algérie (Ben Kérat, Oued Zenati) et description de deux nouveaux muridés","authors":"Emmanuelle Stoetzel, M. Pickford","doi":"10.5252/geodiversitas2022v44a8","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a8","url":null,"abstract":"RÉSUMÉ La présente étude porte sur l'analyse d'un assemblage inédit de restes de microvertébrés récoltés en 1910 à Ben Kérat, dans le nord-est de l'Algérie. L'objectif principal de cette étude était d'évaluer le potentiel paléontologique du site, et de préciser son contexte géologique et chronologique. L'assemblage étudié obtenu à partir de plusieurs échantillons de brèche comprend 362 restes identifiés, appartenant à 44 individus et 11 taxons: six rongeurs appartenant aux genres Gerbillus Desmarest, 1804, Meriones Illiger, 1811, Paraethomys Petter, 1968, Mus Linnaeus, 1758, Praomys Thomas, 1915 et Ellobius Fischer, 1814, deux soricidés du genre Crocidura Wagler, 1832, un amphibien anoure, un lézard lacertidé et un serpent colubridé, indiquant un âge situé vers la fin du Pléistocène moyen. Bien que le spectre faunique global soit similaire à d'autres assemblages de sites maghrébins du Pléistocène moyen, les spécimens de Ben Kérat présentent des caractéristiques dentaires particulières, pouvant traduire soit une période d'amélioration climatique dans un contexte plus global d'aridification et de refroidissement croissant, soit une particularité régionale avec notamment des nouvelles formes de Paraethomys et de Mus ne s'insérant pas dans les lignées évolutives connues jusqu'ici en Afrique du Nord.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"237 - 263"},"PeriodicalIF":1.8,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46009433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

First fossil of Varanus Merrem, 1820 (Squamata: Varanidae) from the Miocene Siwaliks of Pakistan 1820年巴基斯坦中新世Siwaliks地区Varanus Merrem的首个化石(鳞片目:Varanidae)

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2022-02-14 DOI: 10.5252/geodiversitas2022v44a7

A. Villa, M. Delfino

引用次数: 2

A re-appraisal of the middle-late Miocene fossil decapod crustaceans of the ‘Faluns’ (Anjou-Touraine, France) 中新世中晚期“法轮人”十足目甲壳类动物化石的重新评估（法国安茹-图林）

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2022-02-10 DOI: 10.5252/geodiversitas2022v44a6

À. Ossó, Cyril Gagnaison, Olivier Gain

{"title":"A re-appraisal of the middle-late Miocene fossil decapod crustaceans of the ‘Faluns’ (Anjou-Touraine, France)","authors":"À. Ossó, Cyril Gagnaison, Olivier Gain","doi":"10.5252/geodiversitas2022v44a6","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a6","url":null,"abstract":"ABSTRACT The access to a new collection of decapod crustaceans collected from the middle-late Miocene ‘Faluns’, and examination of new specimens available, have allowed to expand the previous compilations by Couffon (1908) and Ossó & Gagnaison (2019), elevating to nineteen the species reported, representatives of seventeen genera and fourteen families. Squat lobsters and parthenopid crabs are reported for the first time in the Atlantic Miocene of France. The expected presence of Xantho moldavicus (Yanakevich, 1977) and Lobocarcinus sismondai (von Meyer, 1843), hitherto known only by chelae, is confirmed herein. The status of Haydnella pulchellus (A. Milne-Edwards, 1864) is discussed. Moreover, the ventral features of Necronectes michelini (A. Milne-Edwards, 1861) are described for the first time. This decapod assemblage presents clear affinity with coeval decapod faunas from the Mediterranean and Paratethys realm, as evidenced by the presence of identical species such as Liocarcinus kuehni (Bachmayer, 1953) or Pilumnus mediterraneus (Lőrenthey, 1897), which is by far, the most common decapod in the ‘Faluns’ outcrops. Several different chelae and carapace remains are left in open nomenclature.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"207 - 228"},"PeriodicalIF":1.8,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44484695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1

Inventory of Cenozoic radiolarian species (Class Polycystinea) – 1834-2020 新生代放射虫(多胱虫纲)物种清查- 1834-2020

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2022-02-03 DOI: 10.5252/geodiversitas2022v44a5

L. O’Dogherty, Noritoshi Suzuki, J. Caulet, P. Dumitrică

引用次数: 1

A 100-million-year-old ensiferan with unusual mouthparts and comments on the evolution of raptorial appendages within Polyneoptera 1亿年前有不寻常口器的敏感动物，并评论了多翅目中猛禽附属物的进化

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2022-01-27 DOI: 10.5252/geodiversitas2022v44a4

J. Haug, M. Hörnig, C. Kiesmüller, P. Pazinato, V. Baranov, C. Haug

{"title":"A 100-million-year-old ensiferan with unusual mouthparts and comments on the evolution of raptorial appendages within Polyneoptera","authors":"J. Haug, M. Hörnig, C. Kiesmüller, P. Pazinato, V. Baranov, C. Haug","doi":"10.5252/geodiversitas2022v44a4","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a4","url":null,"abstract":"ABSTRACT Myanmar amber is known to provide fossils of the group Insecta with surprising morphologies. Here we present fossils of the new species Gryllobencain patrickmuelleri n. gen., n. sp. from Myanmar amber that possess an overall “orthopteroid” morphology, hence resemble crickets. Unlike in most crickets, thorax appendages 1 and 2 (“legs”) are large and prominent, even in comparison to thorax appendage 3. Furthermore, thorax appendages 1 and 2 are able to fold against themselves and are armed with prominent spine-like setae, indicating that these legs were originally used for grasping prey. Most prominent is a large spine on the tibia of both appendages distantly reminding of the tibial spur or claw of praying mantises. Comparable prey-catching apparatuses have evolved repeatedly in the group Polyneoptera: gladiators (Mantophasmatodea), three ingroups of bush-crickets (Saginae, Austrosaginae, Listroscelidinae) as well as one species of fossil mantises (Santanmantis axelrodi Grimaldi, 2003) appear to have used thorax appendages 1 and 2 for prey catching. The new fossils do not seem to be closely related to any of these groups. They differ especially by prominent cerci equipped with numerous, probably mechano-sensorial setae. In the other five groups, the cerci are significantly smaller, often indistinct. The fossils furthermore have prominent maxillae with sickle-shaped proximal parts and well-armed large palps, indicating that the maxillae played an important role in processing the prey. While the thorax appendages hence represent a case of clear convergent evolution, the uniqueness of the feeding apparatus leads us to recognise the fossils as a highly specialised new species.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"57 - 73"},"PeriodicalIF":1.8,"publicationDate":"2022-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46627247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 3

A Jacobson's beetle from Cretaceous Charentese amber (Coleoptera: Jacobsoniidae) 白垩纪夏伦氏琥珀中的一种雅各布森甲虫(鞘翅目:雅各布森甲虫科)

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2022-01-20 DOI: 10.5252/geodiversitas2022v44a3

Erik Tihelka, D. Peris, Chen-yang Cai, V. Perrichot

{"title":"A Jacobson's beetle from Cretaceous Charentese amber (Coleoptera: Jacobsoniidae)","authors":"Erik Tihelka, D. Peris, Chen-yang Cai, V. Perrichot","doi":"10.5252/geodiversitas2022v44a3","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a3","url":null,"abstract":"ABSTRACT Jacobsoniidae is a species-poor family of minute polyphagan beetles distributed in tropical and subtropical regions. Both extant representatives of the family as well as fossils are rare. Here we describe a new fossil species, Derolathrus capdoliensis n. sp., from latest Albian-earliest Cenomanian Charentese amber from the Cadeuil deposit, Charente-Maritime department in south-western France. The new species is defined by several unusual characters, most notably the co-joined but not fully fused two apical antennomeres. Derolathrus capdoliensis n. sp. is approximately contemporaneous with Kachin amber (burmite), filling an important geographical gap in the Mesozoic distribution of the family. The widespread distribution of jacobsoniid beetles in the Cretaceous, encompassing the Tethyan and Austral realms, indicates a more widespread distribution of the family during this time than in the present day and suggests that the current biogeographical range of Jacobsoniidae may be a result of extinction in northern regions. The new species shows remarkable similarity to extant members of the genus and provides further evidence of prolonged morphological, and probably also ecological, stasis in Jacobsoniidae since at least the Cretaceous.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"47 - 56"},"PeriodicalIF":1.8,"publicationDate":"2022-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44311325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 2

Equids from the late Middle Pleistocene to Early Holocene of the Apulia Peninsula (southern Italy): reassessment of their taxonomy and biochronology 意大利南部普利亚半岛中更新世晚期至全新世早期的马科动物:分类和生物年代学的重新评估

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2022-01-14 DOI: 10.5252/geodiversitas2022v44a2

B. Mecozzi, Flavia Strani

{"title":"Equids from the late Middle Pleistocene to Early Holocene of the Apulia Peninsula (southern Italy): reassessment of their taxonomy and biochronology","authors":"B. Mecozzi, Flavia Strani","doi":"10.5252/geodiversitas2022v44a2","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a2","url":null,"abstract":"ABSTRACT The Apulian Peninsula represents a key-region for the study of climatic changes and paleoenvironmental dynamics during the Quaternary. Both large and small-sized horses are well documented in this region during the Pleistocene and are frequently found associated. The caballoid horses from Middle to Late Pleistocene of Europe show a large intraspecific ecomorphological variation, emphasizing a strong link between skeletal adaptations and specific aspects of the palaeoenvironment. This large variability led to an extended debate concerning the taxonomy of equids and their evolutionary history. In the Italian Peninsula, fossils from the Middle to the Late Pleistocene have been historically referred to several species (or even subspecies), emphasizing the uncertainty of the taxonomic attribution. Here, a large craniodental sample of Equidae fossils from late Middle Pleistocene to the Early Holocene localities of the Apulia Peninsula are described for the first time. The comparison of the protocone index allowed us to determine the first occurrences of Equus mosbachensis von Reichenau, 1903 in the Apulian Peninsula, from a few localities chronologically referred to late Middle Pleistocene. Most of the material from the late Middle to the end of the Late Pleistocene is instead attributed to Equus ferus Boddaert, 1785. The results of this work thus add novel information on the biochronology of Italian fossil equids and their evolutionary history through the Middle and Late Pleistocene.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"17 - 45"},"PeriodicalIF":1.8,"publicationDate":"2022-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44436024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 2

The evolution of hermit crabs (Crustacea, Decapoda, Anomura, Paguroidea) on the basis of carapace morphology: a state-of-the-art-report 寄居蟹（甲壳纲、十足目、无尾目、异足目）在甲壳形态基础上的进化：最新报告

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2022-01-06 DOI: 10.5252/geodiversitas2022v44a1

René H. B. Fraaije, B. V. van Bakel, J. Jagt, S. Charbonnier, G. Schweigert, G. Garcia, Xavier Valentin

{"title":"The evolution of hermit crabs (Crustacea, Decapoda, Anomura, Paguroidea) on the basis of carapace morphology: a state-of-the-art-report","authors":"René H. B. Fraaije, B. V. van Bakel, J. Jagt, S. Charbonnier, G. Schweigert, G. Garcia, Xavier Valentin","doi":"10.5252/geodiversitas2022v44a1","DOIUrl":"https://doi.org/10.5252/geodiversitas2022v44a1","url":null,"abstract":"ABSTRACT In our ongoing studies of both extinct and extant hermit crabs (Paguroidea Latreille, 1802), we have observed and recorded a number of morphological changes that have taken place between Early Jurassic times (c. 185 million years ago) and the present day. Species compositions of paguroid assemblages from marine Upper Jurassic and Lower Cretaceous rocks in Europe are here compared with those of modern marine settings. Basal paguroids with cylindrical carapaces predominated in reefal environments during the Late Jurassic, but were gradually replaced by hermit crabs with non-cylindrical carapaces. The most basal paguroids reveal a branchial groove, but branchial condensation towards a single (i.e., cervical) groove is here shown to have occurred early in their evolutionary history. In several extant, genera remnants of a branchial groove, in combination with several other basal features, can be seen. For this reason, these are here considered to be the most primitive members amongst extant paguroids. In this study, we resurrect the family Probeebeidae and erect a new family, Paguropsidae n. fam, to accommodate extant basal hermit crabs such as Paguropsis Henderson, 1888, Eopaguropsis Fraaije, Krzemiński, Van Bakel, Krzemińska & Jagt, 2012 and Paguropsina Lemaitre, Rahayu & Komai, 2018. Described are also one pair of Early Jurassic (Pliensbachian) and two pairs of Middle Jurassic (Callovian) isochelous paguroid chelae, all collected recently. A new specimen of Schobertella reveals some important morphological traits of the shield that had not been observed previously. The earliest known example to date of clearly heterochelous chelae in the fossil record of hermit crabs originates from upper Kimmeridgian/Tithonian strata in the Boulonnais (northwestern France). For the first time, a phylogenetic scheme of marine Paguroidea, as based on morphological data of carapaces, is presented.","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"44 1","pages":"1 - 16"},"PeriodicalIF":1.8,"publicationDate":"2022-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42418637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 5

Jean-Claude Rage, a life dedicated to paleoherpetology Jean-Claude Rage，致力于古爬虫学的一生

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2021-12-20 DOI: 10.5252/geodiversitas2021v43a27

J. Steyer, M. Augé, G. Métais

引用次数: 0

Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean 托尔顿-墨西尼亚过渡时期的苔藓虫动物群。地中海东部克里特岛的古环境案例研究

IF 1.8 3区地球科学

Geodiversitas Pub Date : 2021-12-16 DOI: 10.5252/geodiversitas2021v43a26

P. Moissette, A. Antonarakou, G. Kontakiotis, J. Cornée, V. Karakitsios

{"title":"Bryozoan faunas at the Tortonian-Messinian transition. A palaeoenvironmental case study from Crete Island, eastern Mediterranean","authors":"P. Moissette, A. Antonarakou, G. Kontakiotis, J. Cornée, V. Karakitsios","doi":"10.5252/geodiversitas2021v43a26","DOIUrl":"https://doi.org/10.5252/geodiversitas2021v43a26","url":null,"abstract":"ABSTRACT Four sedimentary sections were logged and sampled from upper Tortonian-lower Messinian outcrops on the island of Crete (Greece). The collected material yielded about 60 bryozoan species belonging to nine different colonial morphotypes. A few species are stenobathic, indicating either shallow- or deep-water environments, but most of them are eurybathic (with bathymetric ranges extending in some instances from the shelf down to several hundreds of metres). Bryozoan communities point to sea-level variations modulated by local tectonics. Deep circalittoral environments were recognized at the base of three sections (whereas the fourth section starts with infralittoral/shallow circalittoral environments passing to deep circalittoral. Shallow bathyal habitats follow upwards, succeeded in turn by assemblages indicative of deep circalittoral and subsequently shallow circalittoral/infralittoral depths. Inferred bathymetric fluctuations are diachronous throughout the island. Shallow-water species found associated, sometimes abundantly, with rarer deep-water faunas in a few levels, are interpreted as transported by currents. Several dysoxic episodes have been also detected: likely the result of water column stratification and enhanced productivity. These processes were probably boosted by a combination of changes in oceanic circulation, climate, global sea-level, and the local/regional tectonics (in Crete and/or the marine gateways between the Mediterranean and the Atlantic).","PeriodicalId":55111,"journal":{"name":"Geodiversitas","volume":"43 1","pages":"1365 - 1400"},"PeriodicalIF":1.8,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46629425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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