Pub Date : 2023-01-01DOI: 10.5710/peapa.06.06.2022.415
José F. Prado, M. Alberdi
{"title":"DIVERSIDAD DE LOS ÉQUIDOS FÓSILES DE AMÉRICA DEL SUR Autores/as","authors":"José F. Prado, M. Alberdi","doi":"10.5710/peapa.06.06.2022.415","DOIUrl":"https://doi.org/10.5710/peapa.06.06.2022.415","url":null,"abstract":"","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70946151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.15.09.2023.458
Felipe Busker, Luciana Giachetti, Gastón Martínez
We report for the first time continental fossil mammals and trace from the locality of Cabo Raso (Chubut, Argentina). Among them, the presence of the rodent Soriamys gaimanensis (first record outside of Bryn Gwyn locality) is mentioned, in addition to Eoviscaccia australis and Perimys sp. On the same level, isolated notoungulate teeth (Hegetotheriidae indet. and Pachyrukhinae cf. Pachyrukhos sp.) were found. Moreover, the ichnotaxon Chubutolithes gaimanenesis is reported in an underlying level, this being the third locality in the Chubut Province for which this ichnogenus has been mentioned. These specimens allow us to estimate relative ages for two levels of the Sarmiento Formation (middle Eocene to Early Miocene) in the locality, one of them referable to the Casamayoran South American Land Mammal Age—SALMA— (middle Eocene) and the other to the Colhuehuapian SALMA (Early Miocene). From a faunistic perspective, describing a new locality with levels referable to the Colhuehuapian SALMA in Argentina is relevant due to the geographic restriction compared to other SALMAs (Deseadan or PanSantacrucian). From a geographic perspective, Cabo Raso is the only Early Miocene fossil-bearing locality in the coast of Chubut Province reported so far.
{"title":"UN PUEBLO OLVIDADO Y SU RESURGIMIENTO: PRIMEROS REGISTROS FÓSILES DEL CENOZOICO DE CABO RASO (CHUBUT, ARGENTINA) Y SUS IMPLICANCIAS PALEOBIOESTRATIGRÁFICAS","authors":"Felipe Busker, Luciana Giachetti, Gastón Martínez","doi":"10.5710/peapa.15.09.2023.458","DOIUrl":"https://doi.org/10.5710/peapa.15.09.2023.458","url":null,"abstract":"We report for the first time continental fossil mammals and trace from the locality of Cabo Raso (Chubut, Argentina). Among them, the presence of the rodent Soriamys gaimanensis (first record outside of Bryn Gwyn locality) is mentioned, in addition to Eoviscaccia australis and Perimys sp. On the same level, isolated notoungulate teeth (Hegetotheriidae indet. and Pachyrukhinae cf. Pachyrukhos sp.) were found. Moreover, the ichnotaxon Chubutolithes gaimanenesis is reported in an underlying level, this being the third locality in the Chubut Province for which this ichnogenus has been mentioned. These specimens allow us to estimate relative ages for two levels of the Sarmiento Formation (middle Eocene to Early Miocene) in the locality, one of them referable to the Casamayoran South American Land Mammal Age—SALMA— (middle Eocene) and the other to the Colhuehuapian SALMA (Early Miocene). From a faunistic perspective, describing a new locality with levels referable to the Colhuehuapian SALMA in Argentina is relevant due to the geographic restriction compared to other SALMAs (Deseadan or PanSantacrucian). From a geographic perspective, Cabo Raso is the only Early Miocene fossil-bearing locality in the coast of Chubut Province reported so far.","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135360759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.25.08.2023.475
Sebastián Frezzia, Alejandro Zucol
The continuous evolution of tools applied in 3D digitization and modelling in recent times has allowed their utility in different scientific fields, one of them being paleontology, providing benefits for the study and exposure of fossil materials. In this paper, we present two methodologies for digitizing phytolith morphotypes as three-dimensional models from two-dimensional images using freely available software called bubble model and sculpting mode. Both methodologies are considered complementary when generating a three-dimensional phytolith model. This approach is effective in achieving 3D modelling, generating not only a user-friendly way to visualize such morphotypes but also an effective way to the knowledge and understanding of the variety of morphologies that characterize silicophytoliths.
{"title":"METODOLOGÍA Y ANÁLISIS EN LA DIGITALIZACIÓN DE CUERPOS MICROSCÓPICOS: SU APLICACIÓN A LOS ESTUDIOS FITOLÍTICOS","authors":"Sebastián Frezzia, Alejandro Zucol","doi":"10.5710/peapa.25.08.2023.475","DOIUrl":"https://doi.org/10.5710/peapa.25.08.2023.475","url":null,"abstract":"The continuous evolution of tools applied in 3D digitization and modelling in recent times has allowed their utility in different scientific fields, one of them being paleontology, providing benefits for the study and exposure of fossil materials. In this paper, we present two methodologies for digitizing phytolith morphotypes as three-dimensional models from two-dimensional images using freely available software called bubble model and sculpting mode. Both methodologies are considered complementary when generating a three-dimensional phytolith model. This approach is effective in achieving 3D modelling, generating not only a user-friendly way to visualize such morphotypes but also an effective way to the knowledge and understanding of the variety of morphologies that characterize silicophytoliths.","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135441097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.13.08.2022.418
C. Tambussi, Federico Dregange, Ricardo de Mendoza
{"title":"“EL ESTADO ACTUAL DEL CONOCIMIENTO DE LAS AVES CENOZOICAS DE ARGENTINA” DE TONNI 1980: CUATRO DÉCADAS DESPUÉS","authors":"C. Tambussi, Federico Dregange, Ricardo de Mendoza","doi":"10.5710/peapa.13.08.2022.418","DOIUrl":"https://doi.org/10.5710/peapa.13.08.2022.418","url":null,"abstract":"","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70946469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.11.04.2023.446
Mauricio BIGURRARENA OJEDA, Soledad GOUIRIC-CAVALLI, L. Pérez, M. Reguero
{"title":"BROMALITOS DE LA FORMACIÓN AMEGHINO (=NORDENSKJÖLD) JURASICO SUPERIOR DE LA PENÍNSULA ANTÁRTICA","authors":"Mauricio BIGURRARENA OJEDA, Soledad GOUIRIC-CAVALLI, L. Pérez, M. Reguero","doi":"10.5710/peapa.11.04.2023.446","DOIUrl":"https://doi.org/10.5710/peapa.11.04.2023.446","url":null,"abstract":"","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70946606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.14.11.2022.443
Leandro Martínez, C. Acosta Hospitaleche, Lucía Gómez Peral, Alejandro Gómez Dacal, M. Reguero, D. Poiré, C. Cavarozzi
{"title":"GEOCHEMICAL SIGNALS IN PALEOGENE PENGUINS FROM SEYMOUR ISLAND (ISLA MARAMBIO), ANTARCTIC PENINSULA","authors":"Leandro Martínez, C. Acosta Hospitaleche, Lucía Gómez Peral, Alejandro Gómez Dacal, M. Reguero, D. Poiré, C. Cavarozzi","doi":"10.5710/peapa.14.11.2022.443","DOIUrl":"https://doi.org/10.5710/peapa.14.11.2022.443","url":null,"abstract":"","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70946751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.28.12.2022.430
D. Morón-Alfonso, Marcela Cichowolski, René Hoffmann, Maricel Rodríguez
{"title":"DISCOVERY OF AMMONOID JAW APPARATUS AND ASSOCIATED FEATURES USING REFLECTANCE TRANSFORMATION IMAGING (RTI)","authors":"D. Morón-Alfonso, Marcela Cichowolski, René Hoffmann, Maricel Rodríguez","doi":"10.5710/peapa.28.12.2022.430","DOIUrl":"https://doi.org/10.5710/peapa.28.12.2022.430","url":null,"abstract":"","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70947386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.04.08.2023.474
Daniela Olivera, Marcelo Martínez, Germán Otharán, Luis Agüero, Carlos Zavala
The perforated Pediastrum Meyen s.l. species are recorded for the first time in the basal levels of the Tithonian Vaca Muerta Formation, extending its first stratigraphical record to ages as old as Late Jurassic times. Based on the ecological requirements of Pediastrum simplex var. clathratum and P. simplex var. biwaense, the previously warm paleoclimatic conditions suggested by the Late Jurassic of Neuquén Basin, are reinforced. The co-occurrence of the different mechanisms that interacted during the transport, accumulation, and early diagenesis of these sediments and their organic content would have allowed for the excellent preservation of the Pediastrum Meyen s.l. species.
在梯通统Vaca Muerta组的基底层中首次记录到了带孔的Meyen s.l. Pediastrum，将其首次地层记录时间延长到了晚侏罗世。根据青叶小檗(Pediastrum simplex var. clathratum)和biwaense小檗(P. simplex var. biwaense)的生态要求，加强了纽泉流域晚侏罗世以前温暖的古气候条件。在这些沉积物的运输、堆积和早期成岩作用过程中，不同机制的相互作用及其有机含量的共同存在，可能使米扬小檗物种得以很好地保存下来。
{"title":"FIRST TITHONIAN RECORD OF PERFORATED PEDIASTRUM MEYEN S.L. SPECIES WITHIN EARLY–DIAGENETIC CARBONATE CONCRETIONS FROM THE VACA MUERTA FORMATION, NEUQUÉN BASIN, ARGENTINA. IMPLICATIONS FOR THE PALYNOLOGICAL ANALYSIS OF FINE-GRAINED ROCKS","authors":"Daniela Olivera, Marcelo Martínez, Germán Otharán, Luis Agüero, Carlos Zavala","doi":"10.5710/peapa.04.08.2023.474","DOIUrl":"https://doi.org/10.5710/peapa.04.08.2023.474","url":null,"abstract":"The perforated Pediastrum Meyen s.l. species are recorded for the first time in the basal levels of the Tithonian Vaca Muerta Formation, extending its first stratigraphical record to ages as old as Late Jurassic times. Based on the ecological requirements of Pediastrum simplex var. clathratum and P. simplex var. biwaense, the previously warm paleoclimatic conditions suggested by the Late Jurassic of Neuquén Basin, are reinforced. The co-occurrence of the different mechanisms that interacted during the transport, accumulation, and early diagenesis of these sediments and their organic content would have allowed for the excellent preservation of the Pediastrum Meyen s.l. species.","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135597179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.24.10.2022.424
M. Ubilla, Daniel Perea
. QUATERNARY CoNTINENTAL VERTEBRATEs oF URUGUAY: CHRoNoLoGY AND ENVIRoNMENTs. A brief revision of selected studies on the Quaternary continental vertebrates of Uruguay is provided. The diversity of the dominant group in the record—mammals—was notably increased as well as in some avian groups. The temporal framework takes into account the chronostratigraphic proposal available for the Pampean region as a biostratigraphic correlation tool and an increasing number of numerical ages (radiocarbon and optically stimulated luminescence). The sedimentary beds outcropping in northern Uruguay (the sopas Formation) yield a rich and diverse fossil content. They are correlated to the Lujanian stage/Age and the numerical ages of many outcrops fall in the range of the Marine Isotopic stage 3 (MIs 3). The vertebrates support diverse environments including freshwater bodies, riparian forests, semi-open forests, open areas
。乌拉圭第四纪大陆脊椎动物:年代和环境。对乌拉圭第四纪大陆脊椎动物的若干研究作了简要修订。优势类群的多样性在哺乳动物中显著增加，在一些鸟类类群中也是如此。时间框架考虑了潘潘地区可用的年代地层建议，作为生物地层对比工具和越来越多的数值年龄(放射性碳和光学激发发光)。在乌拉圭北部露头的沉积层(sopas组)产生了丰富多样的化石含量。它们与陆家良阶段/年龄相关，许多露头的数值年龄落在海洋同位素阶段3 (MIs 3)的范围内。脊椎动物支持多种环境，包括淡水体、河岸森林、半开放森林和开放地区
{"title":"VERTEBRADOS DEL CUATERNARIO CONTINENTAL DE URUGUAY: CRONOLOGÍA Y AMBIENTES","authors":"M. Ubilla, Daniel Perea","doi":"10.5710/peapa.24.10.2022.424","DOIUrl":"https://doi.org/10.5710/peapa.24.10.2022.424","url":null,"abstract":". QUATERNARY CoNTINENTAL VERTEBRATEs oF URUGUAY: CHRoNoLoGY AND ENVIRoNMENTs. A brief revision of selected studies on the Quaternary continental vertebrates of Uruguay is provided. The diversity of the dominant group in the record—mammals—was notably increased as well as in some avian groups. The temporal framework takes into account the chronostratigraphic proposal available for the Pampean region as a biostratigraphic correlation tool and an increasing number of numerical ages (radiocarbon and optically stimulated luminescence). The sedimentary beds outcropping in northern Uruguay (the sopas Formation) yield a rich and diverse fossil content. They are correlated to the Lujanian stage/Age and the numerical ages of many outcrops fall in the range of the Marine Isotopic stage 3 (MIs 3). The vertebrates support diverse environments including freshwater bodies, riparian forests, semi-open forests, open areas","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70947189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.5710/peapa.09.10.2023.471
None Mora-Núñez, Claudia Uribe-Mú, Yalma Vargas-Rodríguez, Francisco Sahagún-Sánchez, Francisco Huerta-Martínez
Fossil deposits ranging from lower Cretaceous to the Quaternary are found in Jalisco state, western Mexico. This study presents a systematic list of the fossil record of Jalisco, Mexico, and analyze the composition of their richness. The corresponding literature was reviewed and the main paleontological collections with fossil material from the region were consulted. A total of 293 species organized into three kingdoms, six phyla, 12 classes, 49 orders, 87 families, and 184 genera were recorded. A total of 67 species (22.9%) are microfossils and 226 (77.1%) are macrofossils. Microfossils include two species of foraminifera (3%) and 65 of diatoms (97%). Among macrofossils, the best represented group at class level are Mammalia with 110 species (48.7%), followed by Gastropoda with 37 (16.4%), Sauropsida with 35 (15.5%), and Teleostei with 30 (13.3%); the least represented classes are Isopoda, Scaphopoda, Amphibia, and Magnoliopsida with a single record each. The best represented period is the Quaternary with 199 species (67.9%), followed by the Neogene with 49 species (16.7%), and finally the Cretaceous with 45 (15.4%). By locality, the richest are Chapala and Zacoalco for the Quaternary, Tecolotlán of the Neogene, and Tamazula for the Cretaceous. The species included were registered from 1875 to 2022.
{"title":"RIQUEZA DEL REGISTRO FÓSIL DE JALISCO, MÉXICO","authors":"None Mora-Núñez, Claudia Uribe-Mú, Yalma Vargas-Rodríguez, Francisco Sahagún-Sánchez, Francisco Huerta-Martínez","doi":"10.5710/peapa.09.10.2023.471","DOIUrl":"https://doi.org/10.5710/peapa.09.10.2023.471","url":null,"abstract":"Fossil deposits ranging from lower Cretaceous to the Quaternary are found in Jalisco state, western Mexico. This study presents a systematic list of the fossil record of Jalisco, Mexico, and analyze the composition of their richness. The corresponding literature was reviewed and the main paleontological collections with fossil material from the region were consulted. A total of 293 species organized into three kingdoms, six phyla, 12 classes, 49 orders, 87 families, and 184 genera were recorded. A total of 67 species (22.9%) are microfossils and 226 (77.1%) are macrofossils. Microfossils include two species of foraminifera (3%) and 65 of diatoms (97%). Among macrofossils, the best represented group at class level are Mammalia with 110 species (48.7%), followed by Gastropoda with 37 (16.4%), Sauropsida with 35 (15.5%), and Teleostei with 30 (13.3%); the least represented classes are Isopoda, Scaphopoda, Amphibia, and Magnoliopsida with a single record each. The best represented period is the Quaternary with 199 species (67.9%), followed by the Neogene with 49 species (16.7%), and finally the Cretaceous with 45 (15.4%). By locality, the richest are Chapala and Zacoalco for the Quaternary, Tecolotlán of the Neogene, and Tamazula for the Cretaceous. The species included were registered from 1875 to 2022.","PeriodicalId":36871,"journal":{"name":"Publicacion Electronica de la Asociacion Paleontologica Argentina","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135710028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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