Revista Brasileira De Paleontologia最新文献

{"title":"First record of an amniotic egg from the Romualdo Formation (Lower Cretaceous, Araripe Basin, Brazil)","authors":"Dayanne Abreu, M. S. Viana, P. V. Oliveira, Gustavo Fernandes Viana, D. M. B. Nojosa","doi":"10.4072/rbp.2020.3.03","DOIUrl":"https://doi.org/10.4072/rbp.2020.3.03","url":null,"abstract":"Fossil amniotic eggs have great informative potential, especially regarding reproductive and evolutionary aspects of vertebrates. However, there are only few intact specimens or with fossilized embryos within, and the rare reported cases are mostly related to dinosaurs. In Brazil, the records of these ichnofossils are practically restricted to the Bauru Basin. This research aims to describe the first amniotic egg found in carbonate concretions in the Romualdo Formation, adding information to the study of these fossils and to the paleontological context of the basin. The specimen was collected at the Sitio Pe da Serra do Felix, in the Municipality of Simoes, Piaui State, Brazil. The methodology employed was based on Scanning Electron Microscopy, Energy Dispersive Spectroscopy and Optical Microscopy techniques, as well as computed tomography analyses. The morphological and microstructural characteristics of the shell suggests the identification of the fossil as a crocodylomorph egg. This specimen differs from other fossil eggs assigned to the aforementioned group by its small size and considerably thick shell. The tomographic sections revealed possible basic structures of an embryo inside the egg, suggesting that this is the first fossilized egg with a crocodylomorph embryonic trace found in the world. \u0000Keywords: ichnofossil, amniotic egg, embryo, Crocodylomorpha, Aptian, Romualdo Formation.\u0000Ovos amnioticos fosseis possuem um grande potencial informativo, especialmente em relacao aos aspectos reprodutivos e evolutivos dos vertebrados. Contudo, existem poucos exemplares intactos ou dotados de vestigios embrionarios em seu interior e os raros casos registrados sao em sua maioria relacionados a dinossauros. No Brasil, os registros desses icnofosseis estao praticamente restritos a Bacia Bauru. O presente trabalho objetiva descrever a primeira ocorrencia de um ovo amniotico encontrado em concrecoes carbonaticas da Formacao Romualdo, acrescentando informacoes ao estudo desses fosseis e ao contexto paleontologico da bacia. O especime foi coletado no Sitio Pe da Serra do Felix, no Municipio de Simoes, Piaui, Brasil. A metodologia empregada baseou-se nas tecnicas de Microscopia Eletronica de Varredura,  Espectroscopia por Energia Dispersiva e Microscopia Optica, bem como analises de tomografia computadorizada. As caracteristicas morfologicas e microestruturais da casca sugerem que o fossil se trata de um ovo de crocodilomorfa. O especime analisado difere de outros ovos fosseis atribuidos ao referido grupo taxonomico pelo tamanho reduzido e casca consideravelmente espessa. As secoes tomograficas revelaram possiveis estruturas basicas de um embriao no interior do material, sugerindo que se trata do primeiro ovo fossilizado de crocodilomorfa com restos embrionarios do mundo.\u0000Palavras-chave: icnofossil, ovo amniotico, embriao, Crocodylomorpha, Aptiano, Formacao Romualdo.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"185-193"},"PeriodicalIF":0.7,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48453374","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}

{"title":"Diatomeas holocenas del delta del río Colorado, Argentina. Una aproximación paleoambiental a partir del estudio de “fragilarioides pequeñas”","authors":"Rocío Fayó, Marcela A. Espinosa, F. Isla","doi":"10.4072/rbp.2020.3.05","DOIUrl":"https://doi.org/10.4072/rbp.2020.3.05","url":null,"abstract":"Holocene diatoms of the Colorado River Delta, Argentina. A paleoenvironmental approach from the study of “small fragilarioids”. Diatom assemblages of a sedimentary succession in the deltaic plain of the Colorado River (Argentina) were studied in order to reconstruct the paleoenvironmental conditions of the delta in response to Holocene sea-level changes. A 191 cm depth core was extracted by vibracoring from Las Isletas (LI), located 22 km from the coast (39°43’5.7”S, 62°20’49.7”W). A cluster analysis – CONISS of 35 subsamples defined three diatom zones (DZ). The sedimentary succession is dominated by small fragilarioids, being Punctastriata glubokoensis Williams, Chudaev & Gololobova the most abundant species; the accompanying flora included fresh-brackish and allochthonousmarine-coastal taxa. At the base, subzone DZIA (191–163 cm, 7,315±64 14C yr BP) included sandy lithological units and presented abundant marine-coastal species. The overlying subzone DZIB (163–96 cm) has low abundance of allochthonous marine species. The uppermost zone, DZII (96 cm from the top) integrate the silt-sandy lithological units, and it was deposited ca. 2,218±29 14C yr BP. DZII lacked marine species. The LI sequence represents the infilling of a river-estuarine channel with tidal influence ca. 7,300 14C yr BP that gradually evolved into a fresh-brackish river channel, similar to the current river, ca. 2,200 14C yr BP. During the Middle Holocene transgression, the greatest marine influence would have transported coastal marine species upstream to the LI site; the increase of fluvial influence associated with the progradation of the delta lobe would have favored the ubiquity and persistence of the small fragilarioids in the fluvial-delta assemblages of the Colorado River during the last ca. 7,000 14C yr BP.\u0000Keywords: Fragilariaceae, delta, sea level, Holocene, Patagonia.\u0000As associacoes de diatomaceas, de uma sucessao sedimentar da planicie deltaica do Rio Colorado (Argentina), foram estudadas com o objetivo de reconstruir as condicoes paleoambientais do delta, em resposta as flutuacoes do nivel do mar no Holoceno. Um testemunho de 191 cm de profundidade foi extraido usando um vibracoring no sitio Las Isletas (LI), localizado a 22 km da costa atual (39°43’5,7”S, 62°20’49,7”O). A analise diatomologica de 35 sub-amostras permitiu definir tres zonas de diatomaceas (DZ) por meio de uma analise de agrupamento – CONISS. O testemunho foi dominado por pequenos fragilarioides, sendo Punctastriata glubokoensis Williams, Chudaev & Gololobova a especie mais abundante. A flora acompanhante apresentou especies de agua salobra-duciaquicolas e taxons marinho-costeiros aloctones. A subzona basal DZIA (191–163 cm, 7.315 ± 64 anos 14C AP) incluiu unidades litologicas arenosas e apresentou abundantes diatomaceas marinhas costeiras aloctone. A subzona sobrejacente (DZIB: 163–96 cm) exibiu poucos taxons marinhos. A zona DZII (96 cm no topo) integrou unidades litologicas de areia-siltosa, for","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"209-221"},"PeriodicalIF":0.7,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42477100","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}

{"title":"First record of the family Anyphaenidae (Arachnida: Araneae) from the Chiapas amber (Early Miocene, Mexico)","authors":"M. A. García-Villafuerte","doi":"10.4072/rbp.2020.3.01","DOIUrl":"https://doi.org/10.4072/rbp.2020.3.01","url":null,"abstract":"The first record of the spider family Anyphaenidae for the early Miocene Mexican Chiapas amber, a juvenile from Simojovel de Allende, is described. The specimen is assigned to the subfamily Anyphaeninae, based on the position of the tracheal spiracle.\u0000Keywords: Chiapas, Araneae, Anyphaeninae, Miocene, amber.\u0000 \u0000E descrito o primeiro registro da familia Anyphaenidae para âmbar de Chiapas, Mexico, uma aranha juvenil, do Mioceno inferior de Simojovel de Allende. O especime e atribuido a subfamilia Anyphaeninae, com base na posicao da espiraculo traqueal.\u0000Palavras-chave: Chiapas, Araneae, Anyphaeninae, Mioceno, âmbar.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48969441","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}

{"title":"Paracytheridea pucketti nom. nov. for Paracytheridea inflata Puckett, 2008 (Ostracoda, Crustacea)","authors":"A. Salazar-Ríos","doi":"10.4072/rbp.2020.3.06","DOIUrl":"https://doi.org/10.4072/rbp.2020.3.06","url":null,"abstract":"","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"222-223"},"PeriodicalIF":0.7,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42225930","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}

{"title":"The fossil Proboscidea (Mammalia) from Bahia State, Brazil: taxonomy, description, and new locations","authors":"M. Rosa, C. Scherer, L. Avilla","doi":"10.4072/rbp.2020.3.04","DOIUrl":"https://doi.org/10.4072/rbp.2020.3.04","url":null,"abstract":"Fossils of Proboscidea are abundant in Northeastern Brazil. This study presents the identification and description of Proboscidea fossils from eight natural tank deposits in the Bahia state. The specimens were identified based on comparison with available references and by direct analysis of collection specimens. The fossils from the municipalities of Caldeirao Grande, Nordestina, Teofilândia, and Guanambi were identified only at the order level, while the specimens from the municipalities of Santaluz and Joao Dourado were identified as Notiomastodon platensis. Moreover, five age classes were identified: immature, subadult, adult, mature adult, and senile-adult. The majority of the studied individuals are mature adults. The existing records of Proboscidea from Bahia included a total of 32 localities, and the present study increase in 22% these records.\u0000Keywords: Notiomastodon platensis, Pleistocene, Quaternary, Megafauna, South America, Northeast Brazil.\u0000Fosseis de Proboscidea sao abundantes no nordeste do Brasil. Este estudo apresenta a identificacao e descricao de fosseis de Proboscidea provenientes de oito depositos naturais do tipo tanque do Estado da Bahia. Os especimes foram identificados com base em comparacoes com referencias disponiveis e com analise direta a especimes em colecao. Os fosseis dos municipios de Caldeirao Grande, Nordestina, Teofilândia e Guanambi foram identificados apenas ao nivel de ordem, enquanto os especimes provenientes dos municipios de Santaluz e Joao Dourado foram identificados como Notiomastodon platensis. Alem disso, cinco faixas etarias foram identificadas: imaturo, subadulto, adulto, adulto maduro e adulto senil. A maioria dos individuos sao adultos maduros. Os registros existentes de Proboscidea na Bahia incluem um total de 32 localidades, e o presente estudo aumenta em 22% esse registro.\u0000Palavras-chave: Notiomastodon platensis, Pleistoceno, Quaternario, Megafauna, America do Sul, Nordeste do Brasil.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"194-208"},"PeriodicalIF":0.7,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45880021","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}

{"title":"Aportes de la palinología al conocimiento de los embalsados holocenos de Corrientes, Argentina","authors":"Lionel Fernandez Pacella, Mercedes Di Pasquo","doi":"10.4072/rbp.2020.1.04","DOIUrl":"https://doi.org/10.4072/rbp.2020.1.04","url":null,"abstract":"","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"63-72"},"PeriodicalIF":0.7,"publicationDate":"2020-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48442194","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}

{"title":"The genus Cypridea (Crustacea, Ostracoda) and the age of the Quiricó Formation, SE Brazil: a critical review","authors":"J. Coimbra","doi":"10.4072/rbp.2020.2.02","DOIUrl":"https://doi.org/10.4072/rbp.2020.2.02","url":null,"abstract":"The non-marine ostracod Cypridea Bosquet is surprisingly diverse worldwide, especially in the Cretaceous. Due to their short temporal distribution, many Cypridea species together with other typical Pre-Salt ostracod genera, such as Ilhasina Krommelbein, Paracypridea Swain, Petrobrasia Krommelbein, Reconcavona Krommelbein, and Theriosynoecum Branson, have provided a robust biostratigraphic framework for Brazilian and Western African basins. The Reconcavo-Tucano Basin, located in the Bahia State, was the first Brazilian oil basin. This huge Mesozoic paleolake has over a hundred of ostracod species, most of the genus Cypridea, which allowed the development of a biostratigraphic chart with nine biozones and several subzones. This biostratigraphic framework has been used for correlations with most of the non-marine sections of NE and SE Brazilian basins, including the Sanfranciscana Basin, whose lacustrine outcrops correspond to the Quirico Formation. Nevertheless, in a recent publication on ostracods and the age of the Quirico Formation, Cypridea species were erroneously identified. Consequently, a Valanginian age was wrongly proposed for the base of that formation, and the stratigraphic and geographical distributions of some species were erroneously extended. The present study reveals that none Cypridea species of the Quirico Formation is conspecific with the Reconcavo-Tucano Basin species, including Cypridea hystrix Krommelbein, and, consequently, a Valanginian age is discarded for the base of that formation.\u0000Keywords: biostratigraphy, Cretaceous, Minas Gerais State, paleolimnology, Quirico Formation.\u0000O ostracode continental Cypridea Bosquet e incrivelmente diverso em todo o mundo, especialmente no Cretaceo. Devido a curta distribuicao temporal, muitas especies de Cypridea, juntamente com outros generos tipicos de ostracodes das secoes do Pre-Sal, como Ilhasina Krommelbein, Paracypridea Swain, Petrobrasia Krommelbein, Reconcavona Krommelbein e Theriosynoecum Branson, permitiram a construcao de um excelente arcabouco bioestratigrafico para bacias brasileiras e do oeste africano. A Bacia do Reconcavo-Tucano, localizada na Bahia, foi a primeira bacia petrolifera brasileira explorada economicamente. Esse enorme paleolago mesozoico possui mais de 100 especies de ostracodes, a maioria do genero Cypridea, que permitiram o desenvolvimento de uma carta bioestratigrafica com nove biozonas e varias subzonas. Este arcabouco bioestratigrafico tem sido usado para correlacoes com a maioria das secoes nao marinhas das bacias brasileiras do NE e SE, incluindo a Bacia Sanfranciscana, cujos afloramentos lacustres correspondem a Formacao Quirico. No entanto, em uma publicacao recente sobre ostracodes e a idade da Formacao Quirico, especies de Cypridea foram identificadas erroneamente. Em consequencia disso, uma idade valanginiana foi proposta equivocadamente para a base dessa formacao, e as distribuicoes estratigraficas e geograficas de algumas especies foram incorret","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"90-97"},"PeriodicalIF":0.7,"publicationDate":"2020-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48486855","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}

{"title":"Bortolin site, a new fossiliferous locality in the Triassic (Ladinian/Carnian) of southern Brazil","authors":"Ane E B Pavanatto, Á. A. Da-Rosa, Rodrigo Temp-Müller, Lucio Roberto-Da-Silva, A. M. Ribeiro, A. Martinelli, Sérgio Dias-da-Silva","doi":"10.4072/rbp.2020.2.04","DOIUrl":"https://doi.org/10.4072/rbp.2020.2.04","url":null,"abstract":"A new fossiliferous site from the Pinheiros-Chiniqua Sequence (Santa Maria Supersequence) with typical tetrapod components of the Dinodontosaurus Assemblage Zone (AZ) is here described. The new site is included in the Faxinal do Soturno Structural Block. The fossil content is characterized by cranial and postcranial material of rauisuchian archosaurs, traversodontid and chiniquodontid cynodonts and dicynodonts, the first occurrence of a large-sized coelacanth fish in the Brazilian Triassic, as well as ichnological material, represented by coprolites. The presence of Luangwa together with Massetognathus raises interesting questions regarding the age of this site included in the Dinodontosaurus AZ when compared with other localities of Southern Brazil, western Argentina and Africa. As in other localities of this AZ, the fossil specimens recovered in Bortolin site exhibit remarkable differences on their fossil preservation: those from the lower portion of the outcrop (distal floodplain) possess a heterogeneous preservation (variable between poor to fairly good) whereas those from the top levels (proximal floodplain) are comparatively better preserved. This new locality, with a large amount of stratigraphically controlled fossils, constitutes a key-locality to study the distribution of Triassic terrestrial tetrapods and to perform comparisons with other sites of this AZ, inwhich several historical records lack a precise provenance.\u0000Keywords: Dinodontosaurus Assemblage Zone, Santa Maria Supersequence, Luangwa, coelacanth.\u0000Um novo sitio fossilifero e descrito para a Sequencia Pinheiros-Chiniqua (Supersequencia Santa Maria) com tetrapodes tipicos da Zona de Associacao (ZA) de Dinodontosaurus. Este novo sitio esta incluido no Bloco Estrutural Faxinal do Soturno. O conteudo fossil e caracterizado por materiais cranianos e pos-cranianos de arcossauros rauissuquideos, cinodontes chiniquodontideos e traversodontideos e dicinodontes, a primeira ocorrencia de um peixe celacanto de grande tamanho, alem de materiais icnologicos, representados por coprolitos. A presenca de Luangwa juntamente com Massetognathus levanta interessantes questoes acerca da idade desse sitio, incluido na ZA de Dinodontosaurus, quando comparado com outras localidades do sul do Brasil, oeste da Argentina e Africa. Assim como em outras localidades desta ZA, os especimes fosseis coletados no sitio Bortolin apresentam diferencas notaveis na preservacao dos fosseis: fosseis do nivel inferior do afloramento (planicie de inundacao distal) apresentam preservacao heterogenea (variando entre pobre a razoavelmente bem preservado) enquanto que nos niveis superiores (planicie de inundacao proximal), o registro fossil e comparativamente melhor preservado. Esta nova localidade, com uma grande quantidade de fosseis estratigraficamente controlados, constitui uma localidade chave para o estudo da distribuicao dos tetrapodes terrestres do Triassico e sua comparacao com outros sitios desta ZA, na qual vario","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"123-137"},"PeriodicalIF":0.7,"publicationDate":"2020-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44806224","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}

{"title":"Estimación de masa corporal de proterotéridos del Cuaternario (Mammalia, Litopterna) y descripción de un nuevo ejemplar de Neolicaphrium recens Frenguelli, 1921","authors":"Martín Ghizzoni, A. Corona, M. Ubilla, Daniel Perea","doi":"10.4072/rbp.2020.2.06","DOIUrl":"https://doi.org/10.4072/rbp.2020.2.06","url":null,"abstract":"Body mass estimation of Quaternary proterotheriids (Mammalia, Litopterna) and description of a new specimen of Neolicaphrium recens Frenguelli, 1921. A body mass estimation for Quaternary specimens of the family Proterotheriidae was performed using predictive regression equations for extant ungulates. A body mass of 20 –40 kg for Neolicaphrium recens and of <70 kg for Uruguayodon alius are determined based on the analysis of dental, mandibular, and postcranial dimensions including lengths, areas, and volumes. This study incorporates estimates obtained through measurements of elements of the appendicular skeleton, humerus, tibia and astragalus. Limb bones are directly related to body support and locomotion, and therefore their measurements are better estimators of body mass than craniodental dimensions. Additionally, is described and studied a new material of N. recens exhumed from Pleistocene deposits of Colonia Department, southwestern Uruguay.\u0000Keywords: body mass, Litopterna, Neolicaphrium recens, Proterotheriidae, Uruguayodon alius.\u0000Uma estimativa de massa corporal e feita para especimes quaternarios da familia Proterotheriidae por meio de equacoes de regressao preditiva para ungulados atuais. Com base na analise de dimensoes dentaria, mandibular e pos-craniana, que inclui comprimentos, areas e volumes, foram determinadas massas corporais de 20 a 40 kg para Neolicaphrium recens e <70 kg para Uruguayodon alius. Este estudo incorpora estimativas obtidas atraves de medidas de elementos do esqueleto apendicular, umero, tibia e astragalo. Os ossos dos membros estao diretamente relacionados ao suporte e a locomocao do corpo e, portanto, suas medidas sao melhores estimadores de massa corporal do que as dimensoes crânio-dentarias. Alem disso, um novo material de N. recens proveniente de sedimentos pleistocenicos do Departamento de Colonia, sudoeste do Uruguai, e descrito e estudado.\u0000Palavras-chave: Litopterna, masa corporal, Neolicaphrium recens, Proterotheriidae, Uruguayodon alius.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"153-162"},"PeriodicalIF":0.7,"publicationDate":"2020-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46988802","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}

{"title":"Provinciality of Ostracoda (Crustacea) in the Northeastern and Eastern Brazilian shelves based on neontological and paleontological analyses","authors":"C. Machado, J. Coimbra, C. T. Bergue","doi":"10.4072/rbp.2020.1.01","DOIUrl":"https://doi.org/10.4072/rbp.2020.1.01","url":null,"abstract":"","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":"23 1","pages":"3-31"},"PeriodicalIF":0.7,"publicationDate":"2020-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42594505","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}