Cretaceous Research最新文献_第10页

Unravelling the genetic mechanisms and paleoenvironmental controls of early Cretaceous Oyster Mass occurrences (OMOs), Neuquén Basin, west-central Argentina 揭示阿根廷中西部内乌肯盆地早白垩世牡蛎大量出现（OMOs）的遗传机制和古环境控制因素

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-04-12 DOI: 10.1016/j.cretres.2024.105900

Agustina G. Toscano , Darío G. Lazo , Ernesto Schwarz

{"title":"Unravelling the genetic mechanisms and paleoenvironmental controls of early Cretaceous Oyster Mass occurrences (OMOs), Neuquén Basin, west-central Argentina","authors":"Agustina G. Toscano , Darío G. Lazo , Ernesto Schwarz","doi":"10.1016/j.cretres.2024.105900","DOIUrl":"https://doi.org/10.1016/j.cretres.2024.105900","url":null,"abstract":"<div><p>Lower Valanginian oyster mass occurrences (OMOs) from the Neuquén Basin of Argentina are analyzed using a multidisciplinary approach, including the description of their sedimentological signature and stratigraphic contacts, assessment of taphonomical attributes, and paleontological and paleoecological characteristics. These OMOs present a wide distribution in the study area, with lateral continuity for at least 2.5 km and up to 12 m thick. They occur within a single stratigraphic interval, constrained in terms of sequence stratigraphy and biostratigraphy. Three stacked tabular OMOs separated by mudstone levels were recorded in all the studied localities. The associated lithofacies point to a mainly outer ramp paleoenvironment, below storm wave base and occasionally disturbed by exceptional, distal storm flows. Internally, the OMOs share a common vertical trend characterized, from base to top, by a gradual increase in oyster abundance and a transition from mainly reclining, disarticulated oysters to articulated, cementing oysters conforming build-ups. Hence, a mainly biogenic origin is proposed, with autobiostromes grading vertically to bioherms. This vertical trend was interpreted in terms of development stages, namely, colonization, expansion, climax and extinction, which were in turn related to specific paleoenvironmental controls. Particularly, the OMOs establishment and development were associated to low sedimentation rates, salinity fluctuations and high nutrient input as a result of high primary productivity. At a larger scale, the overall paleoenvironmental conditions and subtropical geographical position of the basin were detrimental for most reef builders typical of the Cretaceous period (<em>e.g.</em>, corals, sponges, rudists), and could have favored oyster proliferation and OMOs development instead.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"160 ","pages":"Article 105900"},"PeriodicalIF":2.1,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140633423","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

Geometric morphometric analyses of Micropterigidae lineages (Lepidoptera) with two new species from mid-Cretaceous amber of northern Myanmar 鳞翅目小蝶科（Micropterigidae）世系的几何形态分析以及缅甸北部中白垩世琥珀中的两个新种

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-04-04 DOI: 10.1016/j.cretres.2024.105897

Ning Han , Weiting Zhang , Hui Fang , Jiajia Wang , Chungkun Shih , Dong Ren

引用次数: 0

Taphonomy and paleohistology of a dinosaur rib from Marília Formation, Bauru Group, in the state of Minas Gerais, Brazil 巴西米纳斯吉拉斯州包鲁组玛丽亚地层恐龙肋骨的岩石学和古生物学研究

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-04-04 DOI: 10.1016/j.cretres.2024.105899

Vinícius José Maróstica Paio , Isabela Jurigan , Rafael Delcourt , Rafael Souza de Faria , Alessandro Batezelli , Fresia Ricardi-Branco

{"title":"Taphonomy and paleohistology of a dinosaur rib from Marília Formation, Bauru Group, in the state of Minas Gerais, Brazil","authors":"Vinícius José Maróstica Paio , Isabela Jurigan , Rafael Delcourt , Rafael Souza de Faria , Alessandro Batezelli , Fresia Ricardi-Branco","doi":"10.1016/j.cretres.2024.105899","DOIUrl":"https://doi.org/10.1016/j.cretres.2024.105899","url":null,"abstract":"<div><p>The Bauru Group (Campanian–Maastrichtian) has one of the richest fossil records of Cretaceous in South America. All dinosaur fossils from this unit were assigned to Saurischia, most of them poorly preserved. We present the histological and taphonomic analysis of a dinosaur dorsal rib fragment from the Marília Formation in the western state of Minas Gerais. Thin sections were prepared to describe the microstructures of the bone tissue and the fossilization processes involved in preserving the specimen. An elemental analysis was also performed to verify the chemical composition of the fossil and rock matrix. Haversian bone was identified in the rib cortex, and no growth marks or an external fundamental system were found. The rib probably belonged to a saurischian dinosaur because of its plank shape and elliptical cross-section. Hypotheses regarding taphonomic processes were inferred. An extended period of subaerial exposure, followed by high-energy transport, was interpreted due to extensive fractures and signs of abrasion on the outer surface of the bone. Pyrite pseudomorphs (framboids) indicate that the bone was deposited in a reductive environment. After burial, the rapid precipitation of calcite and alkaline stability allowed the preservation of apatite during the recrystallization phase. The manganese hydroxides were deposited on apatite crystals during early diagenesis. We concluded that the fossil rib presented a common taphonomic bias identified among vertebrate fossils of the Bauru Group, which is associated with the exposure of the bones to arid and semiarid climates, their transport into the depositional environments and pedogenetic influence during fossil diagenesis.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"160 ","pages":"Article 105899"},"PeriodicalIF":2.1,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140550878","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

A new species of Proraphidia (Raphidioptera: Mesoraphidiidae) from the Lower Cretaceous Laiyang Formation of China 来自中国下白垩统莱阳地层的一个 Proraphidia（蝶形目：中蝶科）新种

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-04-04 DOI: 10.1016/j.cretres.2024.105898

Yuqian Chen , Edmund A. Jarzembowski , Lei Chen , Cihang Luo

引用次数: 0

A review of the lance lacewings (Neuroptera: Osmylidae) from the mid-Cretaceous amber of Myanmar 缅甸白垩纪中期琥珀中的草蜻蛉（Neuroptera: Osmylidae）综述

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-04-04 DOI: 10.1016/j.cretres.2024.105895

Zechuan Li , De Zhuo , Yuhe Gao , Chunpeng Xu , Weiwei Zhang , Yongjie Wang , Xingyue Liu

引用次数: 0

Cretoprostominia myanmarensis gen. et sp. n., the oldest salpingid beetle (Coleoptera: Salpingidae) from mid-Cretaceous Myanmar amber 白垩纪中期缅甸琥珀中最古老的鞘翅目甲虫 Cretoprostominia myanmarensis gen.

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-04-04 DOI: 10.1016/j.cretres.2024.105896

Rixin Jiang , Zhenhua Liu , Xiangsheng Chen

引用次数: 0

A re-description of the historical stratotype for the Berriasian Stage (Cretaceous System): Biostratigraphy and magnetostratigraphy 重新描述柏里阿斯期（白垩系）的历史地层类型：生物地层学和磁地层学

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-03-29 DOI: 10.1016/j.cretres.2024.105892

William A.P. Wimbledon , Tiiu Elbra , Petr Pruner , Petr Schnabl , Šimon Kdýr , Kristýna Šifnerová , Camille Frau , Luc Bulot , Diana Ölveczká , Andrea Svobodová , Radek Mikuláš , Daniela Reháková

引用次数: 0

Phylogenetic relationships of a new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Uruguay 乌拉圭上白垩统新泰坦龙（恐龙亚目，蜥脚类）的系统发育关系

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-03-26 DOI: 10.1016/j.cretres.2024.105894

Matías Soto , José L. Carballido , Max C. Langer , Julian C.G. Silva Junior , Felipe Montenegro , Daniel Perea

{"title":"Phylogenetic relationships of a new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Uruguay","authors":"Matías Soto , José L. Carballido , Max C. Langer , Julian C.G. Silva Junior , Felipe Montenegro , Daniel Perea","doi":"10.1016/j.cretres.2024.105894","DOIUrl":"10.1016/j.cretres.2024.105894","url":null,"abstract":"<div><p>The up to 200 m thick Upper Cretaceous deposits of Uruguay includes from base to top the Guichón, Mercedes, and Asencio formations, plus the lateral correlate of the latter, the Queguay Formation. In 2006, the most complete sauropod from the country was excavated from the Guichón Formation near Araújo, Paysandú Department. Augmented by new specimens reported here, the material includes sixty caudal vertebrae (all strongly procoelous, except for the biconvex first one), a partial coracoid, long bone fragments (proximal and distal portions of tibia, proximal portion of fibula), two astragali, and six metatarsals, as well as associated eggshell fragments. The Uruguayan titanosaur shows a unique combination of characters (biconvex first caudal centrum, pneumatic foramina in the anteriormost caudal centra, dorsal tuberosities on the transverse processes of the anterior caudal vertebrae, well developed fibular knob, pyramidal astragalus), as well as a potential autapomorphy – middle caudal centra condyles with hexagonal contour – allowing the proposition of new genus and species, <em>Udelartitan celeste</em>. Phylogenetic analyses were for the first time performed to assess the relations of that taxon, which was recovered either as a saltasaurine saltasaurid or a non-saltasaurid saltasauroid. Further, one of the analyses show <em>Udelartitan celeste</em> nested within a clade including Late Cretaceous titanosaurs with a biconvex first caudal vertebra, such as <em>Alamosaurus sanjuanensis</em>, <em>Baurutitan britoi</em>, and <em>Pellegrinisaurus powelli</em>. This contribution demonstrates that at least two titanosaur lineages were present in the Late Cretaceous of Uruguay: Saltasauroidea and Aeolosaurini, the latter recently recognized in the stratigraphically younger Asencio Formation.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"160 ","pages":"Article 105894"},"PeriodicalIF":2.1,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140402426","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}

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Four new species of Burmomiles (Coleoptera, Cantharidae) from the mid-Cretaceous Burmese amber 白垩纪中期缅甸琥珀中发现的四种新的缅甸鞘翅目（Coleoptera, Cantharidae）昆虫

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-03-26 DOI: 10.1016/j.cretres.2024.105893

Yuxia Yang, Wei Zhao, Haoyu Liu

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First record of the cosmopolitan brachiopod Praelacazella wetherelli from the lower Maastrichtian of Western Australia 西澳大利亚下马斯特里希特统世界性腕足动物 Praelacazella wetherelli 的首次记录

IF 2.1 3区地球科学

Cretaceous Research Pub Date : 2024-03-20 DOI: 10.1016/j.cretres.2024.105881

Ane Elise Schrøder , Finn Surlyk , Eckart Håkansson

引用次数: 0