El Neógeno De La Mesopotamia Argentina
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Mioceno Tardío) De Entre Ríos, Argentina
Rev. bras. paleontol. 18(3):521-546, Setembro/Dezembro 2015 © 2015 by the Sociedade Brasileira de Paleontologia doi: 10.4072/rbp.2015.3.14 ACTUALIZACIÓN SISTEMÁTICA Y FILOGENIA DE LOS PROTEROTHERIIDAE (MAMMALIA, LITOPTERNA) DEL “MESOPOTAMIENSE” (MIOCENO TARDÍO) DE ENTRE RÍOS, ARGENTINA GABRIELA INÉS SCHMIDT Laboratorio de Paleontología de Vertebrados, Centro de Investigaciones Científi cas y Transferencia de Tecnología a la Producción (CICYTTP-CONICET), Materi y España (E3105BWA), Diamante, Entre Ríos, Argentina. [email protected] ABSTRACT – SYSTEMATIC UPDATE AND PHYLOGENY OF THE PROTEROTHERIIDAE (MAMMALIA, LITOPTERNA) FROM THE “MESOPOTAMIENSE” (LATE MIOCENE) OF ENTRE RÍOS PROVINCE, ARGENTINA. A systematic update of the species of Proterotheriidae (Litopterna) from the “Mesopotamiense” of Entre Ríos Province (Argentina) is performed, and their phylogenetic relationships with other members of the family are tested. Brachytherium cuspidatum Ameghino is validated (considered nomen dubium hitherto) and a sexual dimorphism is proposed for this species. This idea is based on metric, but not morphological, differences among the specimens included in it, which is supported by a discriminant analysis. Neobrachytherium ameghinoi Soria and Proterotherium cervioides Ameghino are also valid, and Epitherium? eversus (Ameghino) is assigned to the genus Diadiaphorus. Detailed descriptions of the specimens are presented for each taxon, and their diagnosis are revised. Key words: Proterotheriidae, Ituzaingó Formation, Entre Ríos Province, systematics, phylogeny. RESUMO – Uma atualização sistemática, das espécies de Proterotheriidae (Litopterna) presentes no “Mesopotamiense” da Província de Entre Ríos, Argentina, é realizada, bem como são testadas as suas relações fi logenéticas com outros integrantes da família. Brachytherium cuspidatum (previamente considerada nomen dubium) é revalidada, e um dimorfi smo sexual é proposto para esta espécie. -
Evolutionary and Functional Implications of Incisor Enamel Microstructure Diversity in Notoungulata (Placentalia, Mammalia)
Journal of Mammalian Evolution https://doi.org/10.1007/s10914-019-09462-z ORIGINAL PAPER Evolutionary and Functional Implications of Incisor Enamel Microstructure Diversity in Notoungulata (Placentalia, Mammalia) Andréa Filippo1 & Daniela C. Kalthoff2 & Guillaume Billet1 & Helder Gomes Rodrigues1,3,4 # The Author(s) 2019 Abstract Notoungulates are an extinct clade of South American mammals, comprising a large diversity of body sizes and skeletal morphologies, and including taxa with highly specialized dentitions. The evolutionary history of notoungulates is characterized by numerous dental convergences, such as continuous growth of both molars and incisors, which repeatedly occurred in late- diverging families to counter the effects of abrasion. The main goal of this study is to determine if the acquisition of high-crowned incisors in different notoungulate families was accompanied by significant and repeated changes in their enamel microstructure. More generally, it aims at identifying evolutionary patterns of incisor enamel microstructure in notoungulates. Fifty-eight samples of incisors encompassing 21 genera of notoungulates were sectioned to study the enamel microstructure using a scanning electron microscope. We showed that most Eocene taxa were characterized by an incisor schmelzmuster involving only radial enamel. Interestingly, derived schmelzmusters involving the presence of Hunter-Schreger bands (HSB) and of modified radial enamel occurred in all four late-diverging families, mostly in parallel with morphological specializations, such as crown height increase. Despite a high degree of homoplasy, some characters detected at different levels of enamel complexity (e.g., labial versus lingual sides, upper versus lower incisors) might also be useful for phylogenetic reconstructions. Comparisons with perissodactyls showed that notoungulates paralleled equids in some aspects related to abrasion resistance, in having evolved transverse to oblique HSB combined with modified radial enamel and high-crowned incisors. -
Teeth Complexity, Hypsodonty and Body Mass in Santacrucian (Early Miocene) Notoungulates (Mammalia) Guillermo H
Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 106, 303–313, 2017 Teeth complexity, hypsodonty and body mass in Santacrucian (Early Miocene) notoungulates (Mammalia) Guillermo H. Cassini1,2,7, Santiago Herna´ndez Del Pino3,7, Nahuel A. Mun˜oz4,7, M. V. Walter G. Acosta5, Mercedes Ferna´ndez2,6,7, M. Susana Bargo4,8 and Sergio F. Vizcaı´no4,7 1 Divisio´n Mastozoologı´a, Museo Argentino de Ciencias Naturales ‘‘Bernardino Rivadavia’’, Ciudad Auto´noma de Buenos Aires, Argentina. Email: [email protected] 2 Departamento de Ciencias Ba´sicas, Universidad Nacional de Luja´n, Luja´n, Buenos Aires, Argentina. Email: [email protected] 3 Paleontologı´a, Instituto de Nivologı´a, Glaciologı´a y Ciencias Ambientales, Centro Cientı´fico Tecnolo´gico – CONICET Mendoza, Mendoza, Argentina. Email: [email protected] 4 Divisio´n Paleontologı´a Vertebrados, Museo de La Plata, Unidades de Investigacio´n Anexo Museo, FCNyM-UNLP, 60 y 122, 1900 La Plata, Argentina. Email: [email protected]; [email protected]; [email protected] 5 Ca´tedra de Semiologı´a, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Calle 60 y 118 s/n, La Plata, Argentina. Email: [email protected] 6 Divisio´n Paleontologı´a de Vertebrados, Museo Argentino de Ciencias Naturales ‘‘Bernardino Rivadavia’’, Ciudad Auto´noma de Buenos Aires, Argentina. 7 CONICET. Consejo Nacional de Investigaciones Cientı´ficas y Te´cnicas. 8 CIC. Comisio´n de Investigaciones Cientı´ficas de la provincia de Buenos Aires. ABSTRACT: Notoungulates, native South American fossil mammals, have been recently objective of several palaeoecological studies. -
Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina
Palaeontologia Electronica palaeo-electronica.org An exceptionally well-preserved skeleton of Thomashuxleya externa (Mammalia, Notoungulata), from the Eocene of Patagonia, Argentina Juan D. Carrillo and Robert J. Asher ABSTRACT We describe one of the oldest notoungulate skeletons with associated cranioden- tal and postcranial elements: Thomashuxleya externa (Isotemnidae) from Cañadón Vaca in Patagonia, Argentina (Vacan subage of the Casamayoran SALMA, middle Eocene). We provide body mass estimates given by different elements of the skeleton, describe the bone histology, and study its phylogenetic position. We note differences in the scapulae, humerii, ulnae, and radii of the new specimen in comparison with other specimens previously referred to this taxon. We estimate a body mass of 84 ± 24.2 kg, showing that notoungulates had acquired a large body mass by the middle Eocene. Bone histology shows that the new specimen was skeletally mature. The new material supports the placement of Thomashuxleya as an early, divergent member of Toxodon- tia. Among placentals, our phylogenetic analysis of a combined DNA, collagen, and morphology matrix favor only a limited number of possible phylogenetic relationships, but cannot yet arbitrate between potential affinities with Afrotheria or Laurasiatheria. With no constraint, maximum parsimony supports Thomashuxleya and Carodnia with Afrotheria. With Notoungulata and Litopterna constrained as monophyletic (including Macrauchenia and Toxodon known for collagens), these clades are reconstructed on the stem -
34º Jornadas Argentinas De Paleontología De Vertebrados
34º JORNADAS ARGENTINAS DE PALEONTOLOGÍA DE VERTEBRADOS 34º JAPV 2021 - Mendoza ii 34º JAPV 2021 - Mendoza 34º JORNADAS ARGENTINAS DE PALEONTOLOGÍA DE VERTEBRADOS LIBRO DE RESÚMENES 26, 27 y 28 de mayo 2021 Instituciones Organizadoras Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), Museo de Historia Natural de San Rafael (MHNSR) y Museo de Ciencias Naturales y Antropológicas “Juan Cornelio Moyano” (MCNAM). Auspiciantes Universidad Nacional de Cuyo (UNCUYO), Asociación Paleontológica Argentina (APA), Dirección de Patrimonio Cultural y Museos, Ministerio de Cultura y Turismo, Mendoza. Auspiciantes Simposio de Patrimonio Paleontológico ICOM Argentina y Fundación Azara. Financiadores Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina (CONICET) y Fundación Balseiro. iii 34º JAPV 2021 - Mendoza iv 34º JAPV 2021 - Mendoza COMITÉ ORGANIZADOR: Dra. Cecilia Benavente (Coordinadora), Sr. Jorge L. Blanco, Dr. Alberto Boscaini, Sr. Marcelo Bourguet, Dra. Evelyn Luz Bustos, Dra. Esperanza Cerdeño (Coordinadora general), Dr. Marcelo de la Fuente (Coordinador general), Lic. Susana Devincenzi, Dr. Marcos Fernández García, Dra. Analía M. Forasiepi (Coordinadora referente), MSc. Charlene Gaillard, MSc. Pablo González Ruíz, Lic. Silvina Lassa, Dra. Adriana C. Mancuso (Coordinadora general), Dr. Ignacio Maniel, Lic. Alejandra Moschetti, Dr. Tomás Pedernera, Dra. Elena Previtera, Dr. François Pujos, MSc. Cristo O. Romano Muñoz (Coordinador) y Sr. Cristian Sancho. COMITÉ EDITOR: Dr. Alberto Boscaini, Dra. Esperanza Cerdeño (Coordinadora), Dr. Marcos Fernández García, Dr. Marcelo de la Fuente, Dr. Ignacio Maniel, Dra. Elena Previtera, Dr. François Pujos y MSc. Cristo O. Romano Muñoz. COMITÉ CIENTÍFICO EXTERNO: Dr. Fernando Abdala, Dra. Alejandra Abello, Dra. Andrea Arcucci, Dra. Susana Bargo, Dra. Paula Bona, Lic. Mariano Bond, Dr. -
The Neogene Record of Northern South American Native Ungulates
Smithsonian Institution Scholarly Press smithsonian contributions to paleobiology • number 101 Smithsonian Institution Scholarly Press The Neogene Record of Northern South American Native Ungulates Juan D. Carrillo, Eli Amson, Carlos Jaramillo, Rodolfo Sánchez, Luis Quiroz, Carlos Cuartas, Aldo F. Rincón, and Marcelo R. Sánchez-Villagra SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of “diffusing knowledge” was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined a program that included the following statement: “It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge.” This theme of basic research has been adhered to through the years in thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Botany Smithsonian Contributions to History and Technology Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Museum Conservation Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology In these series, the Smithsonian Institution Scholarly Press (SISP) publishes small papers and full-scale monographs that report on research and collections of the Institution’s museums and research centers. The Smithsonian Contributions Series are distributed via exchange mailing lists to libraries, universities, and similar institutions throughout the world. Manuscripts intended for publication in the Contributions Series undergo substantive peer review and evaluation by SISP’s Editorial Board, as well as evaluation by SISP for compliance with manuscript preparation guidelines (available at https://scholarlypress.si.edu). -
(Mammalia, Notoungulata) with Emphases in Basicranial and Auditory Region
RESEARCH ARTICLE Cranial Morphology of the Late Oligocene Patagonian Notohippid Rhynchippus equinus Ameghino, 1897 (Mammalia, Notoungulata) with Emphases in Basicranial and Auditory Region Gastón Martínez1,2*, María Teresa Dozo1, Javier N. Gelfo3,4, Hernán Marani5 1 Instituto Patagónico de Geología y Paleontología, Centro Nacional Patagónico, CONICET, Puerto Madryn, Chubut, Argentina, 2 Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina, 3 División Paleontología Vertebrados, Museo de la Plata, CONICET, La Plata, Buenos a11111 Aires, Argentina, 4 Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina, 5 Facultad de Ciencias Naturales, Universidad Nacional de la Patagonia San Juan Bosco, Puerto Madryn, Chubut, Argentina * [email protected] OPEN ACCESS Abstract Citation: Martínez G, Dozo MT, Gelfo JN, Marani H “Notohippidae” is a probably paraphyletic family of medium sized notoungulates with com- (2016) Cranial Morphology of the Late Oligocene Patagonian Notohippid Rhynchippus equinus plete dentition and early tendency to hypsodonty. They have been recorded from early Ameghino, 1897 (Mammalia, Notoungulata) with Eocene to early Miocene, being particularly diverse by the late Oligocene. Although Emphases in Basicranial and Auditory Region. PLoS Rhynchippus equinus Ameghino is one of the most frequent notohippids in the fossil record, ONE 11(5): e0156558. doi:10.1371/journal. pone.0156558 there are scarce data about cranial -
Burdigalian Deposits of the Santa Cruz Formation in the Sierra Baguales, Austral (Magallanes) Basin: Age, Depositional Environment and Vertebrate Fossils
Andean Geology 40 (3): 458-489, September, 2013 Andean Geology doi: 10.5027/andgeoV40n3-a0410.5027/andgeoV40n3-a?? formerly Revista Geológica de Chile www.andeangeology.cl Burdigalian deposits of the Santa Cruz Formation in the Sierra Baguales, Austral (Magallanes) Basin: Age, depositional environment and vertebrate fossils J. Enrique Bostelmann1, 2, Jacobus P. Le Roux3, Ana Vásquez3, Néstor M. Gutiérrez3, José Luis Oyarzún4, Catalina Carreño3, Teresa Torres5, Rodrigo Otero2, Andrea Llanos5, C. Mark Fanning6, Francisco Hervé3, 7 1 Museo Nacional de Historia Natural, 25 de Mayo 582, Montevideo, Uruguay. [email protected] 2 Red Paleontológica U-Chile, Laboratorio de Ontogenia y Filogenia, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Avda. Las Palmeras 3425, Ñuñoa, Santiago,Chile. [email protected] 3 Departamento de Geología, Universidad de Chile, Centro de Excelencia en Geotermia de los Andes, Plaza Ercilla 803, Santiago, Chile. [email protected]; [email protected]; [email protected]; [email protected]; [email protected] 4 Callejón Pedro Méndez, Huerto N° 112, Puerto Natales, Chile. [email protected] 5 Departamento de Producción Agrícola, Facultad de Ciencias Agronómicas, Universidad de Chile, Avda. Santa Rosa N° 11315, La Pintana, Santiago, Chile. [email protected]; [email protected] 6 Research School of Earth Sciences, The Australian National University, Building 142 Mills Road, ACT 0200, Canberra, Australia. [email protected] 7 Escuela de Ciencias de la Tierra, Universidad Andrés Bello, Salvador Sanfuentes 2357, Santiago, Chile. ABSTRACT. A succession of marine and continental strata on the southern flank of Cerro Cono in the Sierra Baguales, northeast of Torres del Paine, can be correlated with stratigraphic units exposed along the southern border of the Lago Argentino region in Santa Cruz Province, Argentina. -
THE OLDEST MAMMALS from ANTARCTICA, EARLY EOCENE of the LA MESETA FORMATION, SEYMOUR ISLAND by JAVIER N
http://www.diva-portal.org This is the published version of a paper published in Palaeontology. Citation for the original published paper (version of record): Gelfo, J., Mörs, T., Lorente, M., López, G., Reguero, M. (2014) The oldest mammals from Antarctica, early Eocene of La Meseta Formation, Seymour Island. Palaeontology http://dx.doi.org/DOI: 10.1111/pala.12121 Access to the published version may require subscription. N.B. When citing this work, cite the original published paper. Permanent link to this version: http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-922 [Palaeontology, 2014, pp. 1–10] THE OLDEST MAMMALS FROM ANTARCTICA, EARLY EOCENE OF THE LA MESETA FORMATION, SEYMOUR ISLAND by JAVIER N. GELFO1,2,3, THOMAS MORS€ 4,MALENALORENTE1,2, GUILLERMO M. LOPEZ 1,3 and MARCELO REGUERO1,2,5 1Division Paleontologıa de Vertebrados, Museo de La Plata, Paseo del Bosque s/n, B1900FWA, La Plata, Argentina; e-mails: [email protected], [email protected], [email protected], [email protected] 2CONICET 3Catedra Paleontologıa Vertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Avenida 122 y 60, (1900) La Plata Argentina 4Department of Palaeobiology, Swedish Museum of Natural History, PO Box 50007, SE-104 05, Stockholm, Sweden; e-mail: [email protected] 5Instituto Antartico Argentino, Balcarce 290, (C1064AAF), Buenos Aires, Argentina Typescript received 16 April 2014; accepted in revised form 3 June 2014 Abstract: New fossil mammals found at the base of Acan- ungulate. These Antarctic findings in sediments of 55.3 Ma tilados II Allomember of the La Meseta Formation, from the query the minimum age needed for terrestrial mammals to early Eocene (Ypresian) of Seymour Island, represent the spread from South America to Antarctica, which should have oldest evidence of this group in Antarctica. -
Maquetación 1
ISSN 2469-0228 www.peapaleontologica.org.ar NOTOUNGULATA AND ASTRAPOTHERIA (MAMMALIA, MERIDIUNGULATA) OF THE SANTA CRUZ FORMATION (EARLY– MIDDLE MIOCENE) ALONG THE RÍO SANTA CRUZ, ARGENTINE PATAGONIA MERCEDES FERNÁNDEZ 1,2,3 NAHUEL A. MUÑOZ 1,3,4 1Universidad Nacional de Luján, Departamento de Ciencias Básicas . Ruta 5 y Av. Constitución, 6700 Luján, Buenos Aires, Argentina. 2División Paleontología de Vertebrados, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”. Av. Ángel Gallardo 470, C1405DJR Ciudad Autónoma de Bue nos Aires, Argentina. 3Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). 4División Paleontología Vertebrados, Unidades de Investigación Anexo Museo, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata. Av. 60 y 122, B1904 La Plata, Argentina. Recibido: 22 de marzo 2019 - Aceptado: 19 de septiembre 2019 Para citar este artículo: Mercedes Fernández, and Nahuel A. Muñoz (2019). Notoungulata and Astrapotheria (Mammalia, Meridiungulata) of the Santa Cruz Formation (Early–Middle Miocene) along the Río Santa Sruz, Ar gentine Patagonia. Publicación Electrónica de la Asociación Paleontológica Argentina 19 (2): 138–169. Link a este artículo: http://dx.doi.org/ 10.5710/PEAPA.19.09.2019.288 DESPLAZARSE HACIA ABAJO PARA ACCEDER AL ARTÍCULO Asociación Paleontológica Argentina Maipú 645 1º piso, C1006ACG, Buenos Aires República Argentina Tel/Fax (54-11) 4326-7563 Otros artículos en Publicación Electrónica de la APA 19(2): Web: www.apaleontologica.org.ar J.I. Cuitiño et al. L.M. Pérez et al. M. Arnal et al. STRATIGRAPHY AND DEPOSITIONAL DIPLODON CF. COLHUAPIENSIS (BIVALVIA– MIOCENE CAVIOMORPHS FROM ENVIRONMENTS OF THE SANTA CRUZ HYRIIDAE) IN SANTA CRUZ FORMATION THE RÍO SANTA CRUZ (ARGENTINEAN FORMATION (EARLY–MIDDLE MIOCENE) (EARLY–MIDDLE MIOCENE), AT THE RÍO PATAGONIA): AN UPDATE OF THIS ALONG THE RÍO SANTA CRUZ, SANTA CRUZ, PATAGONIA, ARGENTINA. -
Inferring Habitat and Feeding Behaviour of Early Miocene Notoungulates from Patagonia
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Servicio de Difusión de la Creación Intelectual Inferring habitat and feeding behaviour of early Miocene notoungulates from Patagonia GUILLERMO H. CASSINI, MANUEL MENDOZA, SERGIO F. VIZCAI´NO AND M. SUSANA BARGO Cassini, G.H., Mendoza, M., Vizcaı´no, S.F. & Bargo, M.S. 2011: Inferring habitat and feeding behaviour of early Miocene notoungulates from Patagonia. Lethaia,Vol.44, pp. 153–165. Notoungulates, native fossil mammals of South America, have been usually studied from a taxonomic point of view, whereas their palaeobiology has been largely neglected. For example, morpho-functional or eco-morphological approaches have not been rigorously applied to the masticatory apparatus to propose hypothesis on dietary habits. In this study, we generate inferences about habitat and feeding preferences in five Santacrucian genera of notoungulates of the orders Typotheria and Toxodontia using novel computer techniques of knowledge discovery. The Santacrucian (Santa Cruz Formation, late-early Miocene) fauna is particularly appropriate for this kind of studies due to its taxonomic richness, diversity, amount of specimens recorded and the quality of preservation. Over 100 extant species of ungulates, distributed among 13 families of artiodactyls and peris- sodactyls, were used as reference samples to reveal the relationships between craniodental morphology and ecological patterns. The results suggest that all Santacrucian notoungu- lates present morphologies characteristic of open habitats’ extant ungulates. Although the Toxodontia exhibits the same morphological pattern of living mixed-feeders and grazers, the Typotheria shows exaggerated traits of specialized grazer ungulates. h Cra- niodental morphology, ecomorphology, fossil ungulates, knowledge discovery, South America. -
Leeds Thesis Template
Middle to Late Miocene terrestrial biota and climate by Matthew James Pound M.Sci., Geology (University of Bristol) Submitted in accordance with the requirements for the degree of Doctor of Philosophy The University of Leeds School of Earth and Environment September 2012 - 2 - Declaration of Authorship The candidate confirms that the work submitted is his/her own, except where work which has formed part of jointly-authored publications has been included. The contribution of the candidate and the other authors to this work has been explicitly indicated below. The candidate confirms that appropriate credit has been given within the thesis where reference has been made to the work of others. Chapter 2 has been published as: Pound, M.J., Riding, J.B., Donders, T.H., Daskova, J. 2012 The palynostratigraphy of the Brassington Formation (Upper Miocene) of the southern Pennines, central England. Palynology 36, 26-37. Chapter 3 has been published as: Pound, M.J., Haywood, A.M., Salzmann, U., Riding, J.B. 2012. Global vegetation dynamics and latitudinal temperature gradients during the mid to Late Miocene (15.97 - 5.33 Ma). Earth Science Reviews 112, 1-22. Chapter 4 has been published as: Pound, M.J., Haywood, A.M., Salzmann, U., Riding, J.B., Lunt, D.J. and Hunter, S.J. 2011. A Tortonian (Late Miocene 11.61-7.25Ma) global vegetation reconstruction. Palaeogeography, Palaeoclimatology, Palaeoecology 300, 29-45. This copy has been supplied on the understanding that it is copyright material and that no quotation from the thesis may be published without proper acknowledgement. © 2012, The University of Leeds, British Geological Survey and Matthew J.