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Pliocene), Falc6n State, Venezuela, Its Relationship with the Asterostemma Problem, and the Paleobiogeography of the Glyptodontinae ALFREDO A
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by RERO DOC Digital Library Pal&ontologische Zeitschrift 2008, Vol. 82•2, p. 139-152, 30-06-2008 New Glyptodont from the Codore Formation (Pliocene), Falc6n State, Venezuela, its relationship with the Asterostemma problem, and the paleobiogeography of the Glyptodontinae ALFREDO A. CARLINI, La Plata; ALFREDO E. ZURITA, La Plata; GUSTAVO J. SCILLATO-YANI~, La Plata; RODOLFO S,&,NCHEZ, Urumaco & ORANGEL A. AGUILERA, Coro with 3 figures CARLINI, A.A.; ZURITA,A.E.; SCILLATO-YANI~,G.J.; S.~NCHEZ,R. & AGUILERA,O.A. 2008. New Glyptodont from the Codore Formation (Pliocene), Falc6n State, Venezuela, its relationship with the Asterostemma problem, and the paleo- biogeography of the Glyptodontinae. - Palaontologische Zeitschrift 82 (2): 139-152, 3 figs., Stuttgart, 30. 6. 2008. Abstract: One of the basal Glyptodontidae groups is represented by the Propalaehoplophorinae (late Oligocene - mid- dle Miocene), whose genera (Propalaehoplophorus, Eucinepeltus, Metopotoxus, Cochlops, and Asterostemma) were initially recognized in Argentinian Patagonia. Among these, Asterostemma was characterized by its wide latitudinal distribution, ranging from southernmost (Patagonia) to northernmost (Colombia, Venezuela) South America. How- ever, the generic assignation of the Miocene species from Colombia and Venezuela (A.? acostae, A. gigantea, and A. venezolensis) was contested by some authors, who explicitly accepted the possibility that these species could corre- spond to a new genus, different from those recognized in southern areas. A new comparative study of taxa from Argen- tinian Patagonia, Colombia and Venezuela (together with the recognition of a new genus and species for the Pliocene of the latter country) indicates that the species in northern South America are not Propalaehoplophorinae, but represent the first stages in the cladogenesis of the Glyptodontinae glyptodontids, the history of which was heretofore restricted to the late Miocene - early Holocene of southernmost South America. -
Paleogene Pseudoglyptodont Xenarthrans from Central Chile and Argentine Patagonia
PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH STREET, NEW YORK, NY 10024 Number 3536, 18 pp., 4 figures October 19, 2006 Paleogene Pseudoglyptodont Xenarthrans from Central Chile and Argentine Patagonia 1 2 3 MALCOLM C. MCKENNA, ANDRE´ R. WYSS, AND JOHN J. FLYNN ABSTRACT Herein we describe a new, large-bodied species of Pseudoglyptodon, a close sloth ally, from volcaniclastic deposits of the Abanico (5 Coya-Machalı´) Formation of the central Chilean Andean Main Range. This species, P. chilensis, is a rare element of the Tinguiririca Fauna, on which the recently formalized Tinguirirican South American Land Mammal ‘‘Age’’ is founded, being known from just two specimens. The holotype of P. chilensis, a partial skull and largely complete mandibles (preserving seemingly complete upper and lower dentitions), is by far the best-preserved specimen referable to Pseudoglyptodon known. As such, this material permits a more refined phylogenetic placement of this enigmatic xenarthran than has been possible previously, with Pseudoglyptodon representing the proximal outgroup to the clade including the most recent common ancestor of Choelepus and Bradypus, plus all its descendants (i.e., crown clade sloths). A fragmentary specimen from Argentina is removed from Glyptatelus and referred to Pseudoglyptodon. Although this specimen is distinct from P. chilensis and other previously recognized species of Pseudoglyptodon, it offers too meager a basis for formally establishing a new name. Finally, phylogenetic definitions of the names Phyllophaga and Tardigrada are proposed. Historically these terms have been used largely interchangeably, but here we advocate linking the latter to the crown clade. 1 Division of Paleontology, American Museum of Natural History ([email protected]). -
Middle Miocene Rodents from Quebrada Honda, Bolivia
MIDDLE MIOCENE RODENTS FROM QUEBRADA HONDA, BOLIVIA JENNIFER M. H. CHICK Submitted in partial fulfillment of the requirements for the degree of Master of Science Thesis Adviser: Dr. Darin Croft Department of Biology CASE WESTERN RESERVE UNIVERSITY May, 2009 CASE WESTERN RESERVE UNIVERSITY SCHOOL OF GRADUATE STUDIES We hereby approve the thesis/dissertation of _____________________________________________________ candidate for the ______________________degree *. (signed)_______________________________________________ (chair of the committee) ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ (date) _______________________ *We also certify that written approval has been obtained for any proprietary material contained therein. Table of Contents List of Tables ...................................................................................................................... ii List of Figures.................................................................................................................... iii Abstract.............................................................................................................................. iv Introduction..........................................................................................................................1 Materials and Methods.........................................................................................................7 -
Chronologic Implications of New Miocene Mammals from the Cura-Mallín and Trapa Trapa Formations, Laguna Del Laja Area, South Central Chile
Chronologic implications of new Miocene mammals from the Cura-Mallín and Trapa Trapa formations, Laguna del Laja area, south central Chile John J. Flynn a,*, Reynaldo Charrier b, Darin A. Croft c, Phillip B. Gans d, Trystan M. Herriott d, Jill A. Wertheim d, André R. Wyss d a Division of Paleontology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, USA b Departamento de Geología, Universidad de Chile, Casilla 13518, Correo 21, Santiago, Chile c Department of Anatomy, Case Western Reserve University School of Medicine, 10900 Euclid Ave., Cleveland, OH 44106, USA d Department of Earth Science, University of California- Santa Barbara, Santa Barbara, CA 93106, USA abstract Keywords: Recent work in the central Andean Main Range of Chile near Laguna del Laja (37.5°S, 71°W) has pro- Chile duced the first mammal fossils for the region. Fossils, locally abundant and well preserved, occur patchily Fossil mammals across a wide area southeast of the lake. Mammalian remains are derived from generally strongly folded Paleontology (kilometer-scale) exposures of the locally 1.8 km thick, early to middle Miocene Cura-Mallín Formation; Miocene two identifiable specimens have been recovered from the overlying Trapa Trapa Formation as well. Both Geochronology formations consist primarily of well-stratified (1–5 m thick layers) volcaniclastic and volcanic strata, Tectonics deposited predominantly in fluviatile systems. The Cura-Mallín Formation is possibly the southern con- tinuation of (or lateral equivalent to) the richly fossiliferous Abanico Formation mapped between 32°S and 36°S. Intensive sampling in a series of localities east and south of Laguna del Laja has yielded diverse faunas, in addition to radioisotopically dateable horizons. -
Neotropical Mammal Diversity and the Great American Biotic Interchange: Spatial and Temporal Variation in South America’S Fossil Record
REVIEW ARTICLE published: 05 January 2015 doi: 10.3389/fgene.2014.00451 Neotropical mammal diversity and the Great American Biotic Interchange: spatial and temporal variation in South America’s fossil record Juan D. Carrillo 1,2*, Analía Forasiepi 3, Carlos Jaramillo 2 and Marcelo R. Sánchez-Villagra 1 1 Paläontologisches Institut und Museum, University of Zurich, Zurich, Switzerland 2 Smithsonian Tropical Research Institute, Panama City, Panama 3 Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT-CONICET Mendoza, Mendoza, Argentina Edited by: The vast mammal diversity of the Neotropics is the result of a long evolutionary history. James Edward Richardson, Royal During most of the Cenozoic, South America was an island continent with an endemic Botanic Garden Edinburgh, UK mammalian fauna. This isolation ceased during the late Neogene after the formation Reviewed by: of the Isthmus of Panama, resulting in an event known as the Great American Biotic William Daniel Gosling, University of Amsterdam, Netherlands Interchange (GABI). In this study, we investigate biogeographic patterns in South America, Bruce D Patterson, Field Museum of just before or when the first immigrants are recorded and we review the temporal Natural History, USA and geographical distribution of fossil mammals during the GABI. We performed a *Correspondence: dissimilarity analysis which grouped the faunal assemblages according to their age and Juan D. Carrillo, Paläontologisches their geographic distribution. Our data support the differentiation between tropical and Institut und Museum, University of Zurich, Karl-Schmid-Strasse 4, 8006 temperate assemblages in South America during the middle and late Miocene. The Zürich, Switzerland GABI begins during the late Miocene (∼10–7 Ma) and the putative oldest migrations are e-mail: [email protected] recorded in the temperate region, where the number of GABI participants rapidly increases after ∼5 Ma and this trend continues during the Pleistocene. -
Late Oligocene) of Argentina
J. Paleont., 81(6), 2007, pp. 1301–1307 Copyright ᭧ 2007, The Paleontological Society 0022-3360/07/0081-1301$03.00 A POORLY KNOWN RODENTLIKE MAMMAL (PACHYRUKHINAE, HEGETOTHERIIDAE, NOTOUNGULATA) FROM THE DESEADAN (LATE OLIGOCENE) OF ARGENTINA. PALEOECOLOGY, BIOGEOGRAPHY, AND RADIATION OF THE RODENTLIKE UNGULATES IN SOUTH AMERICA MARCELO A. REGUERO,1 MARI´A TERESA DOZO,2 AND ESPERANZA CERDEN˜ O3 1Divisio´n Paleontologı´a de Vertebrados, Museo de La Plata, B1900FWA La Plata, Argentina, Ͻ[email protected]Ͼ, 2Laboratorio de Paleontologı´a, Centro Nacional Patagonico, Consejo Nacional de Investigaciones Cientificas y Te´cnicas, 9120 Puerto Madryn, Chubut, Argentina, Ͻ[email protected]Ͼ, and 3Departamento de Geologı´a y Paleontologı´a, Instituto Argentino de Nivologı´a, Glaciologı´a, y Ciencias Ambientales, Centro Regional de Investigaciones Cientı´ficas y Te´cnicas, Consejo Nacional de Investigaciones Cientı´ficas y Te´cnicas, Avda. Ruiz Leal s/n, 5500 Mendoza, Argentina, Ͻ[email protected]Ͼ ABSTRACT—The cranial anatomy of the Deseadan species Medistylus dorsatus (Ameghino, 1903) is described based on new and complete material from Cabeza Blanca (Chubut, Argentina). Medistylus is the largest of the Pachyrukhinae and the specimen described here is probably the best-preserved pachyrukhine skull known in the Paleogene of South America. Previously, the validity of the species and its phylogenetic affinities with Interatheriidae (Notoungulata, Typotheria) were ambiguous and not conclusive. The syntypes, now reported lost, were isolated teeth poorly described by Ameghino in 1903. This almost complete skull with teeth provides more diagnostic features in order to complete the knowledge of genus. Details about cranial and dental morphology allow the reassessment of Medistylus dorsatus and its inclusion within the subfamily Pachyrukhinae (Hegetotheriidae, Notoungulata). -
Old and New Specimens of a Poorly Known Glyptodont from the Miocene of Patagonia and Their Biochronological Implications
Old and new specimens of a poorly known glyptodont from the Miocene of Patagonia and their biochronological implications Laureano Raúl González Ruiz, Agustina Reato, Martín Cano, and Oscar Martínez Acta Palaeontologica Polonica 62 (1), 2017: 181-194 doi:http://dx.doi.org/10.4202/app.00280.2016 The Palaehoplophorini is a tribe of glyptodonts represented by fragmentary specimens for which the oldest records occur in the Pedregoso and Río Mayo formations (middle–late Miocene) in Patagonia (Argentina). The mammal fossils from those formations were the basis for the recognition of the Mayoan fauna, placed between the Friasian sensu stricto/Colloncuran–Laventan and the Chasicoan faunas. The only identified glyptodont from Río Mayo Formation is Palaehoplophorus meridionalis represented only by its type material (i.e., caudal tube) and the precise provenance is unknown. We describe a new specimen of Palaehoplophorus meridionalis collected in the Río Mayo Formation represented by associated osteoderms of the dorsal carapace and postcranial elements, plus part of the type and assigned specimens that remain unpublished from the old collection. This is the first description of osteoderms from the dorsal carapace of this species and postcranial elements (the first for a Palaehoplophorini), and the first glyptodont with precise provenance from Río Mayo Formation. As result of improving the description and emending the diagnosis, we agree with previous authors about the basal position of Palaehoplophorus meridionalis within the tribe. Finally, we review the Glyptodontidae association of the Mayoan fauna, which are exclusively represented by Palaehoplophorini (Palaehoplophorus meridionalis and Palaehoplophoroides rothi) and Glyptodontidae indet. This association supports a greater affinity of this fauna with the younger Chasicoan than with the older Friasian sensu stricto/Colloncuran–Laventan faunas. -
Xxvi Jornadas...Qxd
AMEGHINIANA Revista de la Asociación Paleontológica Argentina RESÚMENES TOMO 46 Número 4 BUENOS AIRES REPÚBLICA ARGENTINA 2009 Se deja constancia que el presente suplemento se halla desprovisto de validez para propósitos nomenclaturales Disclaimer: this supplement is not deemed to be valid for nomenclatural purposes El Comité Editor de la Asociación Paleontológica Argentina deja constancia que solamente se incluyen en este Suplemento los resúmenes enviados por los organizadores de las diferentes reuniones. AMEGHINIANA 46 (4) Suplemento, 2009-RESÚMENES XXIV JORNADAS ARGENTINAS DE PALEONTOLOGÍA DE VERTEBRADOS RESÚMENES 4 al 7 de mayo de 2009 Museo de Historia Natural de San Rafael (MHNSR), San Rafael, Mendoza COMISIÓN ORGANIZADORA Presidente Marcelo S. de la Fuente (MHNSR) Secretarias Analía Forasiepi (MHNSR) Juliana Sterli (MHNSR) Vocales Miriam Ayala (MHNSR) René Biglione (DGE-Mendoza) Sergio Dieguez (CNEA) Gladys García (Universidad Champagnat) Miguel Giardina (MHNSR) Adolfo Gil (MHNSR) Gustavo Neme (MHNSR) Clara Otaola (MHNSR) Nuria Sugrañes (MHNSR) Financiado por ANPCyT, CONICET y Fondo Provincial de la Cultura de la Pcia. de Mendoza. Auspiciado por Asociación Paleontológica Argentina, Museo de Historia Natural de San Rafael y Municipalidad de San Rafael (Mendoza). AMEGHINIANA 46 (4) Sumplemento, 2009-RESÚMENES 4R CONFERENCIAS Origen de la ictiofauna marina y continental de América del Sur Austral A.L. CIONE1 La ictiofauna neotropical continental es la más rica en especies del mundo. Su mayor riqueza se localiza en las áreas intertropi- cales, un paralelo de lo que sucede con otros organismos. Se calcula que pueden existir 8.000 especies de peces continentales, un cuarto de la totalidad de los conocidos en todo el mundo en ambiente marino o continental. -
Major Radiations in the Evolution of Caviid Rodents: Reconciling Fossils, Ghost Lineages, and Relaxed Molecular Clocks
Major Radiations in the Evolution of Caviid Rodents: Reconciling Fossils, Ghost Lineages, and Relaxed Molecular Clocks Marı´a Encarnacio´ nPe´rez*, Diego Pol* CONICET, Museo Paleontolo´gico Egidio Feruglio, Trelew, Chubut Province, Argentina Abstract Background: Caviidae is a diverse group of caviomorph rodents that is broadly distributed in South America and is divided into three highly divergent extant lineages: Caviinae (cavies), Dolichotinae (maras), and Hydrochoerinae (capybaras). The fossil record of Caviidae is only abundant and diverse since the late Miocene. Caviids belongs to Cavioidea sensu stricto (Cavioidea s.s.) that also includes a diverse assemblage of extinct taxa recorded from the late Oligocene to the middle Miocene of South America (‘‘eocardiids’’). Results: A phylogenetic analysis combining morphological and molecular data is presented here, evaluating the time of diversification of selected nodes based on the calibration of phylogenetic trees with fossil taxa and the use of relaxed molecular clocks. This analysis reveals three major phases of diversification in the evolutionary history of Cavioidea s.s. The first two phases involve two successive radiations of extinct lineages that occurred during the late Oligocene and the early Miocene. The third phase consists of the diversification of Caviidae. The initial split of caviids is dated as middle Miocene by the fossil record. This date falls within the 95% higher probability distribution estimated by the relaxed Bayesian molecular clock, although the mean age estimate ages are 3.5 to 7 Myr older. The initial split of caviids is followed by an obscure period of poor fossil record (refered here as the Mayoan gap) and then by the appearance of highly differentiated modern lineages of caviids, which evidentially occurred at the late Miocene as indicated by both the fossil record and molecular clock estimates. -
Mammalia: Notoungulata: Typotheria) in the Middle Latitudes of South America
DIVERSIFICATION OF MESOTHERIIDS (MAMMALIA: NOTOUNGULATA: TYPOTHERIA) IN THE MIDDLE LATITUDES OF SOUTH AMERICA CROFT, Darin A., Org. Biol. & Anat., U. Chicago, Chicago, IL 60637, FLYNN, John J., Geology, Field Museum, Chicago, IL 60605, WYSS, André R., Geological Sci., U. California, Santa Barbara, CA 93106 Much of the early and middle Cenozoic terrestrial mammal record of South America derives from the higher latitudes, especially Patagonian Argentina. Over the past 20 years, fieldwork in other parts of the continent has resulted in new insights into the evolution and distribution of many mammal clades, including the endemic South American Mesotheriidae (Notoungulata: Typotheria). Mesotheriids are unknown in pre-late Eocene (Mustersan and earlier) faunas and are poorly known prior to the late Oligocene Deseadan South American Land Mammal “Age” (a single specimen has been reported from the earliest Oligocene Rocas Bayas locality and two specimens are known from the ?late Eocene/Oligocene Divisadero Largo Fauna). In Argentina, mesotheriids occur in most Deseadan faunas (though in low abundance), but are not recorded between the Deseadan and Mayoan SALMAs (early and middle Miocene). They are familiar components of late Miocene through early Pleistocene Argentine faunas. In contrast, mesotheriids are common and diverse in most middle Cenozoic faunas of northern Chile and Bolivia, and hence there is no hiatus in their stratigraphic occurrence at intermediate latitudes. The Chucal Fauna of northern Chile, likely of Santacrucian (late early Miocene) age, includes abundant and well-preserved remains of three new mesotheriid species. These species are closely related to the basal mesotheriine Microtypotherium, otherwise known only from Bolivia, and help clarify the early evolution of the Mesotheriinae. -
A Survey of Cenozoic Mammal Baramins
The Proceedings of the International Conference on Creationism Volume 8 Print Reference: Pages 217-221 Article 43 2018 A Survey of Cenozoic Mammal Baramins C Thompson Core Academy of Science Todd Charles Wood Core Academy of Science Follow this and additional works at: https://digitalcommons.cedarville.edu/icc_proceedings DigitalCommons@Cedarville provides a publication platform for fully open access journals, which means that all articles are available on the Internet to all users immediately upon publication. However, the opinions and sentiments expressed by the authors of articles published in our journals do not necessarily indicate the endorsement or reflect the views of DigitalCommons@Cedarville, the Centennial Library, or Cedarville University and its employees. The authors are solely responsible for the content of their work. Please address questions to [email protected]. Browse the contents of this volume of The Proceedings of the International Conference on Creationism. Recommended Citation Thompson, C., and T.C. Wood. 2018. A survey of Cenozic mammal baramins. In Proceedings of the Eighth International Conference on Creationism, ed. J.H. Whitmore, pp. 217–221. Pittsburgh, Pennsylvania: Creation Science Fellowship. Thompson, C., and T.C. Wood. 2018. A survey of Cenozoic mammal baramins. In Proceedings of the Eighth International Conference on Creationism, ed. J.H. Whitmore, pp. 217–221, A1-A83 (appendix). Pittsburgh, Pennsylvania: Creation Science Fellowship. A SURVEY OF CENOZOIC MAMMAL BARAMINS C. Thompson, Core Academy of Science, P.O. Box 1076, Dayton, TN 37321, [email protected] Todd Charles Wood, Core Academy of Science, P.O. Box 1076, Dayton, TN 37321, [email protected] ABSTRACT To expand the sample of statistical baraminology studies, we identified 80 datasets sampled from 29 mammalian orders, from which we performed 82 separate analyses. -
Paleontology and Stratigraphy of the Aisol Formation (Neogene), San Rafael, Mendoza
Paleontology and stratigraphy of the Aisol Formation (Neogene), San Rafael, Mendoza Analía M. Forasiepi1, Agustín G. Martinelli1, Marcelo S. de la Fuente1, Sergio Dieguez1, and Mariano Bond2 ABSTRACT A preliminary analysis of the geology and paleontology of the Aisol Formation is presented upon new fieldwork that started in 2007. Three different sections are recognized within the Aisol Formation, with fossil vertebrates in the lower (LS) and middle (MS) sections. The faunal association of the LS includes: Anura indet., two indeterminate species of Chelonoidis (Testudininae), Phorusrhacidae indet., Mylodontidae indet., Planopinae indet., Glyptodontidae indet., Propalaeohoplophorinae indet., Nesodontinae indet., Palyeidodon cf. P. obtusum (Haplodontheriinae), Hegetotherium sp. (Hegetotheriidae), Protypotherium sp. (Interatheriidae), cf. Theosodon (Macraucheniidae), and Prolagostomus or Pliolagostomus (Chinchillidae), suggesting a middle Miocene age (probably Friasian s.s. or Colloncuran SALMAs (South American Land Mammal Age) following the scheme from Patagonia). The vertebrate association of the MS includes: Hesperocynus dolgopolae (Sparassocynidae), Tremacyllus sp., Dolichotinae indet., Abrocomidae indet., and Ctenomyidae indet., suggesting at least a late Miocene age (Huayquerian SALMA). The new discoveries increase considerably the vertebrate fossil record of the Aisol Formation and argue in favour of at least two different levels of dissimilar age; this view is also supported by geological data. Keywords: fossil vertebrates - Geology