Revista Brasileira De Paleontologia最新文献_第2页

Ideluralia nom. nov., a new name for the ostracode genus Bairdiella Egorova, 1960 Ideluralia nom11 .，介形虫属Bairdiella Egorova的新名称，1960

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2023-07-16 DOI: 10.4072/rbp.2023.2.06

L. S. Antonietto, S. Brandão

引用次数: 0

Tectonic aspects of the Rio Parnaíba Lineament, Duque Bacelar Region, Maranhão State, based on the record of Dinosauria, Spinosaurinae 基于棘龙科恐龙记录的maranh<e:1>州Duque Bacelar地区里约热内卢Parnaíba地层构造特征

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2023-07-16 DOI: 10.4072/rbp.2023.2.03

S. S. Arcanjo, Diogo van Basten Aguiar de Sousa, M. A. Medeiros, Rafael Matos Lindoso, E. Sousa, I. S. Carvalho

引用次数: 0

Burdigalian ichnofabric from the Guri Member, Dezful Embayment, southwestern Iran 伊朗西南部Dezful大使馆Guri成员的Burdigalian遗迹组构

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2023-07-16 DOI: 10.4072/rbp.2023.2.04

M. Ghanavati, raj Maghfouri Moghaddam, M. Aleali, M. Arian

引用次数: 0

Nova ocorrência de Crinoidea no Pensilvaniano da Formação Itaituba, Pedreira Caltarém, norte da Bacia do Amazonas 亚马逊盆地北部Pedreira Caltarém宾夕法尼亚州Itaituba组中新出现的Crinoidea

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2023-06-09 DOI: 10.4072/rbp.2023.1.03

Yasmim Araújo Silva, Geize Carolinne Correia Andrade Oliveira, Rick Souza de Oliveira, Sandro Marcelo Scheffler

{"title":"Nova ocorrência de Crinoidea no Pensilvaniano da Formação Itaituba, Pedreira Caltarém, norte da Bacia do Amazonas","authors":"Yasmim Araújo Silva, Geize Carolinne Correia Andrade Oliveira, Rick Souza de Oliveira, Sandro Marcelo Scheffler","doi":"10.4072/rbp.2023.1.03","DOIUrl":"https://doi.org/10.4072/rbp.2023.1.03","url":null,"abstract":"Crinoidea from the Pennsylvanian deposits of the Itaituba Formation, Northern Amazonas Basin. The Itaituba Formation comprises part of the marine section of the Tapajós Group in the Amazonas Basin. This unit mainly comprises Pennsylvanian carbonate deposits associated with various marine invertebrate fossils. In this work, we present new records of crinoids in the Itaituba Formation in the Caltarém quarry, north platform of the Amazonas Basin. There are described and taxonomically identified, two genera of crinoids, through the study of columnals and pluricolumnals, in addition to the interpretation of the depositional environment through the analysis of carbonate microfacies. The identified specimens correspond to the species Cyclocaudex aff. typicus Moore & Jeffords, and to the genus Pentaridica Moore & Jeffords (first record in the Itaituba Formation). The textural, compositional, and paleontological analysis suggests four standard microfacies MPF 09, 10, 16, 23) and two faciological zones (ZF 7 E 8). The bioturbated bioclastic wackestones (MFP 09) and bioclastic wackestones/packstones (MFP 10) microfacies, with fossils of brachiopods, crinoids, echinoids, miliolid and fusulinid foraminifera, trilobites, and bryozoans, characterize an interior shelf environment, with a connection to an open marine circulation (ZF 7). The peloidal wackestones (MFP 16) and mudstones (MFP 23) microfacies, with a fossiliferous assemblage limited to brachiopods, echinoids and miliolid foraminifera, characterize a restricted lagoon environment (ZF 8). Paleontological data and microfacies analysis indicate the development of a lagoon environment with a diverse paleofauna of marine invertebrates in the carbonate platform of the northern bord of the Amazonas Basin, in the Monte Alegre County, during the Pennsylvanian. Keywords: taxonomy, echinoderms, microfacies, paleoenvironment, Pennsylvanian.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43223302","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

First occurrence of the genus Sphenothallus Hall, 1847 (Cnidaria) in the Carboniferous of the Dnipro-Donets Depression, Ukraine 1847年在乌克兰第聂伯-顿涅茨凹陷石炭纪首次发现Sphenothallus Hall属(刺虫属)

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2023-06-09 DOI: 10.4072/rbp.2023.1.02

V. Dernov

引用次数: 1

New postcranial remains of ground sloths (Xenarthra, Folivora, Mylodontidae) from Southern Brazil 巴西南部新发现的地懒(Xenarthra, Folivora, Mylodontidae)颅骨残骸

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2023-06-09 DOI: 10.4072/rbp.2023.1.04

Mariana Cirino, V. G. Pitana, F. R. Negri, Cástor Cartelle, Jorge Ferigolo, A. M. Ribeiro

{"title":"New postcranial remains of ground sloths (Xenarthra, Folivora, Mylodontidae) from Southern Brazil","authors":"Mariana Cirino, V. G. Pitana, F. R. Negri, Cástor Cartelle, Jorge Ferigolo, A. M. Ribeiro","doi":"10.4072/rbp.2023.1.04","DOIUrl":"https://doi.org/10.4072/rbp.2023.1.04","url":null,"abstract":"Diagnoses of Mylodontidae species are generally based on skull, mandibular, and tooth characteristics, and rarely on postcranial morphology, due to the lack of postcranial material associated with the cranial material. The studies of postcranial anatomy have generally a biomechanical focus and reflect a set of functions of skeletal structures, but their interpretation in phylogenetic analysis is still limited. In Pleistocene deposits of Rio Grande do Sul State, Brazil, an important set of postcranial specimens was collected, belonging to Mylodontidae. They were morphologically and morphometrically analyzed, allowing us to observe some diagnostic characters such as the humeral entepicondylar foramen and crests, shape of the radial shaft, angle of distal articulation of the tibia, as well as the angle of proximal articulation of the astragalus. The material was also compared with specimens from other South American localities. Most of the remains were assigned to Glossotherium robustum and Lestodon armatus. In addition, a new Scelidotheriinae was recorded for Rio Grande do Sul State. The study indicated significant differences in the postcranial morphology, which allowed the recognition of some specific diagnostic characters. Keywords: Mylodontinae, Scelidotheriinae, hindlimb, forelimb, Pleistocene, Rio Grande do Sul.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42668124","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

Sobre la posición filogenética de un ejemplar particular de Panochthus (Xenarthra, Glyptodontidae): análisis basado exclusivamente en caracteres de la coraza dorsal 关于Panochthus（Xenarthra，Glyptodontidae）一个特定标本的系统发育位置：完全基于背壳特征的分析

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2023-06-09 DOI: 10.4072/rbp.2023.1.05

Martín Zamorano

{"title":"Sobre la posición filogenética de un ejemplar particular de Panochthus (Xenarthra, Glyptodontidae): análisis basado exclusivamente en caracteres de la coraza dorsal","authors":"Martín Zamorano","doi":"10.4072/rbp.2023.1.05","DOIUrl":"https://doi.org/10.4072/rbp.2023.1.05","url":null,"abstract":"On the phylogenetic position of a particular specimen of Panochthus (Xenarthra, Glyptodontidae): an analysis based exclusively on characteristics of the dorsal carapace. The monophyly of Xenarthra is supported by morphological and molecular characters, ancient DNA and collagen. Phylogenetic work also supports the idea of a common ancestor for the Cingulata; Glyptodontidae is considered a natural group too; this also occurs with the genus Panochthus, which includes eight species. The phylogenetic relationships of a peculiar specimen UATF-V s/n, assigned to Panochthus sp. were examined through a cladistic analysis carried out exclusively with characters from the dorsal carapace. A maximum parsimony tree with L = 49, CI = 0.84 and IR = 0.74 was obtained through the analysis of a matrix of 14 taxa and 29 characters. The cladogram comprises two large groups: node A includes Nopachtus coagmentatus, N. cabrerai, Propanochthus bullifer, Phlyctaenopyga ameghini; and node B contains Glyptodon reticulatus, Hoplophorus euphractus, Neosclerocalyptus ornatus, Panochthus intermedius, P. subintermedius, P. tuberculatus, P. greslebini, P. hipsilis and UATF-V s/n. The specimen UATF-V s/n is positioned as the sister taxon of all Panochthus spp., having most plesiomorphic characters than other species of the genus. Glyptodon reticulatus appears as the sister group of Panochthus, presenting osteoderms of the mid-dorsal region with a reticular pattern. The characteristic of these osteoderms without a central figure is shared with G. reticulatus and Neuryurus trabeculatus; this feature is interpreted as an evolutionary convergence. The exclusive feature of Panochthus is that the mid-dorsal region and the anterior part of the mid-lateral region of the dorsal carapace are formed by ornate osteoderms following a reticular pattern. Keywords: Glyptodontidae, Panochthus, phylogeny, dorsal carapace, osteoderms, reticular pattern.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42431959","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

Taxonomy of Devonian conulariids (Cnidaria) from Mato Grosso do Sul, Paraná Basin, Brazil 巴西帕拉那<e:1>盆地南马托格罗索泥盆纪圆锥虫属(刺虫科)的分类

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2023-06-09 DOI: 10.4072/rbp.2023.1.01

Caio Bittencourt Guedes, Fernanda Siviero, S. Scheffler

{"title":"Taxonomy of Devonian conulariids (Cnidaria) from Mato Grosso do Sul, Paraná Basin, Brazil","authors":"Caio Bittencourt Guedes, Fernanda Siviero, S. Scheffler","doi":"10.4072/rbp.2023.1.01","DOIUrl":"https://doi.org/10.4072/rbp.2023.1.01","url":null,"abstract":"Devonian conulariids (Cnidaria) from the Ponta Grossa Formation, Paraná Basin, have been studied since 1913, when the fauna composed of Paraconularia africana (Sharpe), Conularia quichua Ulric h, and Paraconularia ulrichana (Cla rke) was first described. Since then, much work has been done encompassing their taphonomy, systematics, and paleobiology. However, until now the studies have relied on conulariids from the eastern border area of the basin. Therefore, there was a lack of information on the conulariids of the northwestern border area of the Paraná Basin, particularly from the Mato Grosso do Sul, for which there are no previous descriptions of these fossils. The present analysis of specimens from the Ponta Grossa Formation in Mato Grosso do Sul revealed the presence of Conularia quichua, Paraconularia africana, P. ulrichana, and Reticulaconularia caetensis sp. nov. Therefore, the diversity of the conulariid fauna recorded from the northwest border area of the basin is greater than that of the eastern border area, where the genus Reticulaconularia has not yet been found, and the presence of Paraconularia ulrichana still needs confirmation. Furthermore, our data suggest that the Paraná Basin had narrow connections with the Devonian seas of Bolivia, at least during sea-level rise, as indicated by the shared benthic marine fauna. Keywords: Conulariids, Lower Devonian, Ponta Grossa Formation, Paraná Basin.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43039748","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

New agglutinated Foraminifera from Early Eocene deposits of Mahallat region, Central Iran: implication on biostratigraphy and paleoecology 伊朗中部马哈拉特地区早始新世沉积物中新的凝集有孔虫:生物地层学和古生态学意义

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2022-12-31 DOI: 10.4072/rbp.2022.4.03

S. Babazadeh

{"title":"New agglutinated Foraminifera from Early Eocene deposits of Mahallat region, Central Iran: implication on biostratigraphy and paleoecology","authors":"S. Babazadeh","doi":"10.4072/rbp.2022.4.03","DOIUrl":"https://doi.org/10.4072/rbp.2022.4.03","url":null,"abstract":"This paper describes the foraminiferal associations along with the presentation of three new agglutinated conical foraminiferal species to the construction of the biozonation framework in the Mahallat region of central Iran. The stratigraphic distribution of benthic foraminifers is used to characterize three assemblage zones that are in ascending order: rotaliids-valvulinids Assemblage Zone, alveolinids-coskinolinids Assemblage Zone, and nummulitids-discocyclinids Assemblage Zone. These associations are characterized by marker fossils and localized from the inner ramp to the proximal outer ramp depositional environments. Their biostratigraphic range is assigned to the middle Cuisian to early Lutetian. In addition, three new agglutinated conical foraminiferal species: Daviesiconus mahallatensis sp. nov., Barattolites arghadehensis sp. nov., and Coleiconus minimus sp. nov. are described and figured for the first time from the lower Eocene shallow-water limestone in the studied area. These new species have common characteristics such as eccentric conical test with a low number of comparably coiled chambers in the early stage and uniserial chambers in the adult stage, but they differ in size, the form of test, and radial subepidermal partitions (beams, intercalary beams, and rafters). They are associated with the index Alveolina fauna and their biostratigraphic range is assigned to middle–late Cuisian (Ypresian, Early Eocene). Keywords: biostratigraphy, Early Eocene, new taxa, Mahallat, Iran.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41938367","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

Cingulata of the Abismo Ponta de Flecha Cave (Pleistocene-Holocene), Ribeira de Iguape Valley, southeastern Brazil

IF 0.7 4区地球科学

Revista Brasileira De Paleontologia Pub Date : 2022-12-31 DOI: 10.4072/rbp.2022.4.06

A. Chahud, P. Oliveira, M. Okumura

引用次数: 0