Annales de Paleontologie最新文献

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The palaeobiogeography of Subpterynotus Olsson & Harbison, 1953 (Gastropoda: Muricidae) revisited with the description of two Cenozoic new species from Eastern Atlantic 重新考察了Subpterynotus Olsson & Harbison, 1953(腹足目:鼠足科)的古生物地理学,并描述了两个来自东大西洋的新生代新种
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2022-04-01 DOI: 10.1016/j.annpal.2022.102556
Didier Merle , Jean-François Lesport , Daniel Ledon
{"title":"The palaeobiogeography of Subpterynotus Olsson & Harbison, 1953 (Gastropoda: Muricidae) revisited with the description of two Cenozoic new species from Eastern Atlantic","authors":"Didier Merle ,&nbsp;Jean-François Lesport ,&nbsp;Daniel Ledon","doi":"10.1016/j.annpal.2022.102556","DOIUrl":"10.1016/j.annpal.2022.102556","url":null,"abstract":"<div><p>The genus <em>Subpterynotus</em> Olsson and Harbison, 1953 was until very recently a composite genus in which several species, now attributed to <em>Eofavartia</em> Merle, 2002 and <em>Exquisitor</em> Merle, Garrigues and Pointier, 2022, were included. Its revision clarified its distribution in the geological record and the description of two new species, <em>S. eocaenicus</em> nov. sp. from the Bartonian of the Paris Basin and <em>S. mainotensis</em> nov. sp. from the Aquitanian of the Aquitaine Basin, increases our knowledge on the palaeobiogeography of the genus. <em>Subpterynotus eocaenicus</em> nov. sp. extends the First Appearance Datum (FAD) of the genus in the middle Eocene (early Bartonian) of Europe, whereas before it was known only in the upper Eocene (Priabonian). <em>Subpterynotus mainotensis</em> demonstrates the persistence of the genus in the Miocene (Aquitanian) of Europe. As no <em>Subpterynotus</em> is known on tropical western Atlantic coast of America prior to the Burdigalian (Chipola Formation, Florida, USA), its presence suggests an east-west dispersal. The palaeobiogeographic scenario of <em>Subpterynotus</em> is compared to those of <em>Eofavartia</em> Merle, 2002 and <em>Exquisitor</em> Merle, Garrigues and Pointier, 2022, which are also thermophilic taxa. It differs from that of <em>Eofavartia</em> which has a west-east dispersion towards Indo-Pacific and that of <em>Exquisitor</em> whose area is restricted to the Miocene European-West African (tropical) Province for the extinct species and to the south of the Mediterranean-Moroccan Province for the extant Atlantic species.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"108 2","pages":"Article 102556"},"PeriodicalIF":1.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45056661","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
Pleolobites (Decapoda: Brachyura) from the Paleogene of Africa revisited, with implications on taxonomy of fossil portunoid crabs 非洲古近系多齿虫(十足目:短肢目)的重新考察及其对葡萄牙类蟹化石分类的启示
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2022-01-01 DOI: 10.1016/j.annpal.2022.102541
Àlex Ossó , Matúš Hyžný , Yawovi Zikpi Amoudji , Koffi Evenyon Kassegne , Ampah Kodjo C. Johnson , Pauline Yawoa D. Da Costa , Claire Bondant , Vincent Perrier , Lionel Hautier , Guillaume Guinot
{"title":"Pleolobites (Decapoda: Brachyura) from the Paleogene of Africa revisited, with implications on taxonomy of fossil portunoid crabs","authors":"Àlex Ossó ,&nbsp;Matúš Hyžný ,&nbsp;Yawovi Zikpi Amoudji ,&nbsp;Koffi Evenyon Kassegne ,&nbsp;Ampah Kodjo C. Johnson ,&nbsp;Pauline Yawoa D. Da Costa ,&nbsp;Claire Bondant ,&nbsp;Vincent Perrier ,&nbsp;Lionel Hautier ,&nbsp;Guillaume Guinot","doi":"10.1016/j.annpal.2022.102541","DOIUrl":"10.1016/j.annpal.2022.102541","url":null,"abstract":"<div><p>Since its first description in 1960, the brachyuran crab genus <em>Pleolobites</em><span> was restricted to the Eocene (Ypresian) strata of Ivory Coast. Here, we report newly collected specimens that indicate its presence in the Paleocene (Thanetian) of Togo. This monotypic genus has been classified within various higher taxa, including Portunidae, Macropipidae, and Carcinidae, depending on the concurrent classification of portunoid crabs. Through the re-examination of the type material of </span><em>Pleolobites erinaceus</em>, the most recent assignment of <em>Pleolobites</em> within the subfamily Polybiinae of the family Carcinidae is disputed herein. Nevertheless, we refrain from assigning <em>Pleolobites</em> to any family and opine for its placement as Portunoidea <em>incertae sedis</em>. Additionally, the crab genus <em>Rhachiosoma</em>, morphologically similar to <em>Pleolobites</em>, is also removed from Polybiinae and placed in Portunoidea <em>incertae sedis</em>. It is further argued that <em>Palaeoxanthopsis</em>, <em>Paraverrucoides</em>, <em>Parazanthopsis</em>, and <em>Verrucoides</em> currently classified within the family Palaeoxanthopsidae of the superfamily Carpilioidea show striking similarities with <em>Pleolobites</em> and <em>Rhachiosoma</em>, including the morphology of dorsal carapace, thoracic sternum and pleon. Additionally, chelipeds with a spiny propodal margin and multi-lobed serial finger-teeth, otherwise characteristic for Portunoidea are found in <em>Parazanthopsis</em> and <em>Palaeoxanthopsis</em>. It remains to be investigated whether these resemblances are the result of evolutionary convergence or close phylogenetic relationships. add a blank line</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"108 1","pages":"Article 102541"},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48308948","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: 1
On the occurrence of the ammonite aptychi Lamellaptychus cf. rectecostatus (Peters, 1854) from the Ogrodzieniec quarry (southern Poland) 关于Ogrodzieniec采石场(波兰南部)产菊石aptychi Lamellaptychus cf.rectecostatus(Peters,1854)
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2022-01-01 DOI: 10.1016/j.annpal.2021.102534
Sreepat Jain , Mariusz A. Salamon , Tomasz Brachaniec
{"title":"On the occurrence of the ammonite aptychi Lamellaptychus cf. rectecostatus (Peters, 1854) from the Ogrodzieniec quarry (southern Poland)","authors":"Sreepat Jain ,&nbsp;Mariusz A. Salamon ,&nbsp;Tomasz Brachaniec","doi":"10.1016/j.annpal.2021.102534","DOIUrl":"10.1016/j.annpal.2021.102534","url":null,"abstract":"<div><p>The largely Kimmeridgian-Tithonian (Late Jurassic) aptychus <em>Lamellaptychus</em> <em>rectecostatus</em> (Peters, 1854) is considered to represent the jaw apparatus of the ammonite superfamily Haploceratoidea (Family Oppeliidae). However, here, from the Ogrodzieniec quarry (southern Poland), we present its unusual allochthonous occurrence embedded in a perisphinctid, <em>Perisphinctes</em> (<em>Kranosphinctes</em>) sp., and co-occurring with a late early Oxfordian Cordatum Subzone (Cordatum Zone) ammonite assemblage. The assemblage includes <em>Cardioceras</em> (<em>Cardioceras</em>) cf. <em>cordatum</em> (Sowerby), <em>Neocampylites delmontanus</em> (Oppel), <em>Lissoceratoides erato</em> (d’Orbigny), <em>Bukowskites distortus</em> (Bukowski), <em>Trimarginites</em> cf. <em>arolicus</em> (Oppel), <em>Glochiceras</em> sp., <em>Holcophylloceras zignodianum</em> (d’Orbigny) and <em>Euaspidoceras</em> (<em>Euaspidoceras</em>) <em>perarmatum</em> (Sowerby).</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"108 1","pages":"Article 102534"},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46309488","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: 2
Biostratigraphy and geometry of the Lower Cretaceous Tirgan and Taft formations from NE and Central Iran (Northern Tethyan margin): Critical discussion of recently published comments 伊朗东北部和中部(北特提斯边缘)下白垩世Tirgan和Taft组的生物地层学和几何学:对最近发表的评论的批判性讨论
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2022-01-01 DOI: 10.1016/j.annpal.2022.102535
Masoumeh Gheiasvand , Annie Arnaud-Vanneau
{"title":"Biostratigraphy and geometry of the Lower Cretaceous Tirgan and Taft formations from NE and Central Iran (Northern Tethyan margin): Critical discussion of recently published comments","authors":"Masoumeh Gheiasvand ,&nbsp;Annie Arnaud-Vanneau","doi":"10.1016/j.annpal.2022.102535","DOIUrl":"10.1016/j.annpal.2022.102535","url":null,"abstract":"<div><p>Biostratigraphy of the Tirgan and Taft formations (Lower Cretaceous successions) from the Kopet-Dagh Basin (NE Iran) and Yazd Block (Central Iran) has been described using the benthic foraminifera and colomiellids, which calibrated with the stable isotope records. They have demonstrated that ages at the base and top of the formations are diachrone, and these successions start in the Berriasian? or the lower Valanginian and end in the upper Aptian or the Albian. Evidence for this diachrony in ages has been provided by geometry of the Tirgan and Taft formations, showing explicit onlap patterns for the deposits. Furthermore, comments have been recently published on some benthic foraminifera and age models of the Tirgan and Taft formations by Schlagintweit (2021). Here, we explain about accuracy of the palaeontology of these species and demonstrate that discussion on the age models is wrongly addressed.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"108 1","pages":"Article 102535"},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44034819","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: 1
Dinosaur footprints from the Early Jurassic of Le Mazel (Lozère, Southern France) 勒马泽尔(法国南部loz<e:1>地区)早侏罗世恐龙脚印
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2022-01-01 DOI: 10.1016/j.annpal.2022.102537
Jean-David Moreau , Vincent Trincal , Louis Baret , Benjamin Bourel , Alain Jacquet
{"title":"Dinosaur footprints from the Early Jurassic of Le Mazel (Lozère, Southern France)","authors":"Jean-David Moreau ,&nbsp;Vincent Trincal ,&nbsp;Louis Baret ,&nbsp;Benjamin Bourel ,&nbsp;Alain Jacquet","doi":"10.1016/j.annpal.2022.102537","DOIUrl":"10.1016/j.annpal.2022.102537","url":null,"abstract":"<div><p>During the 20<sup>th</sup> century, the first dinosaur tracks of the Causses Basin were identified at Saint-Laurent-de-Trèves, in the Parc National des Cévennes (southern France). A recent excavation reveals a new theropod tracksite in the Hettangian deposits from Le Mazel, 2<!--> <!-->km from the historical tracksite at Saint-Laurent-de-Trèves. The tracks are here described combining a biometric approach and 3D imaging photogrammetry. The main track-bearing surface bears 64 <em>in situ</em><span> tridactyl footprints preserved as concave epireliefs. Two morphotypes were identified, a </span><em>“Grallatorid”</em> morphotype and a “<em>Kayentapus”</em> morphotype. Footprints belonging to the first morphotype are closely similar to <em>Grallator lescurei</em>, <em>Grallator minusculus</em>, and <em>Grallator sauclierensis</em>. This study shows the difficulty to distinguish quite similar tridactyl tracks from an ichnotaxonomic point of view and highlights the importance of detailed biometric comparisons. Tracks are preserved in a brown to yellowish dolomudstone showing abundant cryptalgal laminites and mud cracks. These deposits were accrued in shallow environments such as intertidal and supratidal zones of a tidal flat.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"108 1","pages":"Article 102537"},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45642149","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 compsemydid turtle from the Upper Cretaceous of Var, southern France 法国南部瓦尔上白垩纪的一只龟
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2022-01-01 DOI: 10.1016/j.annpal.2022.102536
Haiyan Tong , Thierry Tortosa , Eric Buffetaut , Yves Dutour , Eric Turini , Julien Claude
{"title":"A compsemydid turtle from the Upper Cretaceous of Var, southern France","authors":"Haiyan Tong ,&nbsp;Thierry Tortosa ,&nbsp;Eric Buffetaut ,&nbsp;Yves Dutour ,&nbsp;Eric Turini ,&nbsp;Julien Claude","doi":"10.1016/j.annpal.2022.102536","DOIUrl":"10.1016/j.annpal.2022.102536","url":null,"abstract":"<div><p><em>Calissounemys matheroni</em><span> gen. et sp. nov. (Testudines) is described on the basis of a skull and shell elements from the Upper Cretaceous<span><span> of Var, southern France. This new taxon is assigned to the family Compsemydidae and characterized by a thick-boned, robust skull, a shallow temporal emargination, a crista supraoccipitalis not extending beyond the posterior edge of the skull roof, large nasals meeting along the midline for their full length; frontals retracted from the orbital margin, absence of a cheek emargination, a large jugal forming a substantial part of the orbital margin, absence of a secondary palate and an uneven upper triturating surface; and the shell with vertebral 1 clearly wider than vertebrals 2-3, with the lateral margins strongly divergent towards the anterior border and wider than long vertebrals 2-3. This find increases the diversity of the Late Cretaceous turtle fauna from southern France, and fills a stratigraphical gap in the fossil record of Compsemydidae between the </span>Early Cretaceous and the Paleocene in Europe.</span></span></p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"108 1","pages":"Article 102536"},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44108464","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: 5
Isopod crustacean fossils from the Cenomanian stratotype: five new species in suborders Cymothoida, Asellota and Valvifera 盖诺曼尼亚层型等足甲壳类化石:Cymothoida亚目、Asellota亚目和Valvifera亚目五新种
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2022-01-01 DOI: 10.1016/j.annpal.2022.102538
George D.F. Wilson , Nicolas Morel
{"title":"Isopod crustacean fossils from the Cenomanian stratotype: five new species in suborders Cymothoida, Asellota and Valvifera","authors":"George D.F. Wilson ,&nbsp;Nicolas Morel","doi":"10.1016/j.annpal.2022.102538","DOIUrl":"10.1016/j.annpal.2022.102538","url":null,"abstract":"<div><p><span>We report on a significant fossil collection of five isopod crustaceans that belong to five families from three suborders. These fossils were discovered in Le Mans (western part of Paris Basin, France) during the second half of the nineteenth century by the French paleontologist Edouard Guéranger. The historical quarry has been studied a few years before by the French paleontologist Alcide d’Orbigny and used as part of his Cenomanian stratotype (Leach, 1814). The collection consists of two species in the Cymothooidea Dana, 1852 (Cirolanidae Dana, 1852; Lantoceramiidae fam. nov.), two Valvifera G. O. Sars, 1883 (Chaetiliidae Dana, 1853; Idoteidae Samouelle, 1819) and one Asellota Latreille, 1802 (Stenetriidae Hansen, 1905), which were previously unknown from Upper Cretaceous strata as old as the Cenomanian age (roughly 93–99 ma). Although phylogenetic dating based on extant taxa has assigned Permian to Triassic age of origin for the Asellota, the Stenetriidae Hansen, 1905 specimen is the first fossil record for this family. Another asellotan, </span><em>Fornicaris calligarisi</em> Wilson and Selden, 2016, is known from the Triassic (Norian) dating from approximately 210–215 ma. The valviferans were unknown from Mesozoic strata, previously being found in the Oligocene of Romania and the Fur Formation, Upper Paleocene/Lowermost Eocene of Denmark (Polz, 2007). This diverse assemblage of fossils with taxa assignable to extant families and one new family provides evidence for the presence of a substantially modern isopod fauna as early as the Cenomanian.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"108 1","pages":"Article 102538"},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43960410","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 protopristocerine wasp (Hymenoptera: Bethylidae) from the mid-Cretaceous Burmese amber 文章标题中白垩世缅甸琥珀中一新种原夜蛾蜂属(膜翅目:夜蛾科)
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2021-10-01 DOI: 10.1016/j.annpal.2021.102522
Corentin Jouault , Manuel Brazidec
{"title":"A new protopristocerine wasp (Hymenoptera: Bethylidae) from the mid-Cretaceous Burmese amber","authors":"Corentin Jouault ,&nbsp;Manuel Brazidec","doi":"10.1016/j.annpal.2021.102522","DOIUrl":"10.1016/j.annpal.2021.102522","url":null,"abstract":"<div><p><em>Ramageoptera</em> <em>platycephala</em> gen. et sp. nov., a new protopristocerine wasp, is described and figured from a female individual preserved in mid-Cretaceous amber from Tanai, northern Myanmar. <em>Ramageoptera</em> <em>platycephala</em> gen. et sp. nov. shows most of the known characters used to circumscribe the extinct subfamily Protopristocerinae, and highlights the putative status of stem-Pristocerinae that may occupy the Protopristocerinae. <em>Ramageoptera</em> <em>platycephala</em> gen. et sp. nov. is unique among the Protopristocerinae, at least, for possessing a flat and square shaped head; eyes glabrous and small; mandibles with four conspicuous sharp teeth; antenna with short scape; forewing with Rs<!--> <!-->+<!--> <!-->M vein absent; vein M straight; cell 2R1 distally opened; cell 1Cu closed, sub-equal to R cell; cell 2Cu open.</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 4","pages":"Article 102522"},"PeriodicalIF":1.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44116352","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: 2
Upper Pliocene bivalve shell concentrations from the Lower Chelif basin (NW Algeria): Systematics, sedimentologic and taphonomic framework 下切里夫盆地(阿尔及利亚西北部)上新世双壳类贝类的富集:系统学、沉积学和地貌学框架
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2021-10-01 DOI: 10.1016/j.annpal.2021.102509
Madani Benyoucef , Mohamed Bendella , Mauro Brunetti , Bruno Ferré , Tomas Koci , Imad Bouchemla , Rafika Slami , Asma-Fethia Ghenim
{"title":"Upper Pliocene bivalve shell concentrations from the Lower Chelif basin (NW Algeria): Systematics, sedimentologic and taphonomic framework","authors":"Madani Benyoucef ,&nbsp;Mohamed Bendella ,&nbsp;Mauro Brunetti ,&nbsp;Bruno Ferré ,&nbsp;Tomas Koci ,&nbsp;Imad Bouchemla ,&nbsp;Rafika Slami ,&nbsp;Asma-Fethia Ghenim","doi":"10.1016/j.annpal.2021.102509","DOIUrl":"10.1016/j.annpal.2021.102509","url":null,"abstract":"<div><p>Sedimentologic and palaeontological investigation of the Upper Pliocene Slama Formation in the Lower Chelif Basin (NW Algeria) led us to collect important bivalve assemblages for taxonomic and taphonomic purposes. A rather comprehensive inventory list of Upper Pliocene bivalves from northwestern Algeria is now available and consists of 30 species, 17 of which are extinct ones. Four principal taphonomic attributes were analysed: bioerosion, encrustation, fragmentation, and abrasion. Physical and biogenic sedimentary structures are used for palaeoenvironmental interpretations. The taphonomic, sedimentologic and ichnological characteristics of most of the deposits suggests they originated from discontinuous processes of winnowing and bypassing of sediments, probably due to the action of storms in shallow waters, mainly in the shoreface depositional environment. The bivalve assemblage is dominated by disarticulated valves and displays significant taphonomic alteration in the shells. Sclerobionts traces in shells particulary affect the oyster shells. Bioerosion traces are predominately those of clionid sponges (<em>Entobia</em> isp.), polychaetes (<em>Maeandropolydora</em> isp. and <em>Caulostrepsis</em> isp.), bivalves (<em>Gastrochaenolites</em> isp.), and of predatory gastropods (<em>Oichnus</em> isp.). Among the sclerobionts, the identified encrusters were juvenile oyster recruits, barnacles, polychaetes (serpulid tubeworms), bryozoans (<em>Microporella</em> sp. and <em>Acanthodesia</em> sp.), and vermetid gastropods (<em>Petaloconchus intortus</em>).</p></div>","PeriodicalId":50780,"journal":{"name":"Annales de Paleontologie","volume":"107 4","pages":"Article 102509"},"PeriodicalIF":1.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48446645","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: 4
Les radiolaires messiniens du Dahra (Bassin du Bas Chélif, Algérie) : systématique et intérêt biostratigraphique 达赫拉的墨西尼亚放射虫(阿尔及利亚下切利夫盆地):系统和生物地层学的兴趣
IF 1 4区 地球科学
Annales de Paleontologie Pub Date : 2021-10-01 DOI: 10.1016/j.annpal.2021.102520
Ali Mokhtar Samet , Abbas Marok , Matías Reolid , Shin-Ichi Kamikuri
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