The Geological Development, Descent and Distribution of the Mammalia
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JVP 26(3) September 2006—ABSTRACTS
Neoceti Symposium, Saturday 8:45 acid-prepared osteolepiforms Medoevia and Gogonasus has offered strong support for BODY SIZE AND CRYPTIC TROPHIC SEPARATION OF GENERALIZED Jarvik’s interpretation, but Eusthenopteron itself has not been reexamined in detail. PIERCE-FEEDING CETACEANS: THE ROLE OF FEEDING DIVERSITY DUR- Uncertainty has persisted about the relationship between the large endoskeletal “fenestra ING THE RISE OF THE NEOCETI endochoanalis” and the apparently much smaller choana, and about the occlusion of upper ADAM, Peter, Univ. of California, Los Angeles, Los Angeles, CA; JETT, Kristin, Univ. of and lower jaw fangs relative to the choana. California, Davis, Davis, CA; OLSON, Joshua, Univ. of California, Los Angeles, Los A CT scan investigation of a large skull of Eusthenopteron, carried out in collaboration Angeles, CA with University of Texas and Parc de Miguasha, offers an opportunity to image and digital- Marine mammals with homodont dentition and relatively little specialization of the feeding ly “dissect” a complete three-dimensional snout region. We find that a choana is indeed apparatus are often categorized as generalist eaters of squid and fish. However, analyses of present, somewhat narrower but otherwise similar to that described by Jarvik. It does not many modern ecosystems reveal the importance of body size in determining trophic parti- receive the anterior coronoid fang, which bites mesial to the edge of the dermopalatine and tioning and diversity among predators. We established relationships between body sizes of is received by a pit in that bone. The fenestra endochoanalis is partly floored by the vomer extant cetaceans and their prey in order to infer prey size and potential trophic separation of and the dermopalatine, restricting the choana to the lateral part of the fenestra. -
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. -
Pleistocene Mammals and Paleoecology of the Western Amazon
PLEISTOCENE MAMMALS AND PALEOECOLOGY OF THE WESTERN AMAZON By ALCEU RANCY A DISSERTATION PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY UNIVERSITY OF FLORIDA 1991 . To Cleusa, Bianca, Tiago, Thomas, and Nono Saul (Pistolin de Oro) . ACKNOWLEDGMENTS This work received strong support from John Eisenberg (chairman) and David Webb, both naturalists, humanists, and educators. Both were of special value, contributing more than the normal duties as members of my committee. Bruce MacFadden provided valuable insights at several periods of uncertainty. Ronald Labisky and Kent Redford also provided support and encouragement. My field work in the western Amazon was supported by several grants from the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) , and the Universidade Federal do Acre (UFAC) , Brazil. I also benefitted from grants awarded to Ken Campbell and Carl Frailey from the National Science Foundation (NSF) I thank Daryl Paul Domning, Jean Bocquentin Villanueva, Jonas Pereira de Souza Filho, Ken Campbell, Jose Carlos Rodrigues dos Santos, David Webb, Jorge Ferigolo, Carl Frailey, Ernesto Lavina, Michael Stokes, Marcondes Costa, and Ricardo Negri for sharing with me fruitful and adventurous field trips along the Amazonian rivers. The CNPq and the Universidade Federal do Acre, supported my visit to the. following institutions (and colleagues) to examine their vertebrate collections: iii . ; ; Universidade do Amazonas, Manaus -
Mamiferosacuat/Cosdel Mioceno Medio Y Tardio De Argentina
UNIVERSIDAD NACIONAL DE LA PLATA FACULTAD DE CIENCIAS NATURALES Y MUSEO MAMIFEROSACUAT/COSDEL MIOCENO MEDIO Y TARDIO DE ARGENTINA SISTEMATICA, EVOLUCION Y BIOGEOGRAFIA por Mario Alberto COZZUOL Trabajo de Tesis para optar al Título de '~\ ,-- DOCTOR EN CIENCIAS NATURALES Director de Tesis: Dr. Rosendo PASCUAL La Plata -1993- A mis padres, Ruggero y N elly, porque siempre entendieron, me apoyaron y nunca cuestionaron mi decisión de elegir esta carrera. y A Tere, mi esposa, porque siempre estuvo allí, y porque aún está aquí. j i 1 ii : : ; ¡ .: RESUMEN Algunos de los mamíferos acuáticos del Mioceno tardío de Argentina se cuentan entre los primeros vertebrados fósiles en ser descriptos en el país, pese a lo cual la atención que estos grupos recibieron fue comparativamente escasa en relación a los mamíferos terrestres. En el presente trabajo se reestudian las especies previamente descriptas, y se describen varios nuevos taxones. El estudio se ha dividido en especies procedentes de sedimentitas marinas informalmente agrupadas bajo el nombre de "Entrerriense", y aquellas especies procedentes de aguas continentales, de sedimentitas agrupadas en el Piso/Edad Mesopotamiense, por primera vez propuesto aquí de manera formal. Dentro de las especies procedentes de sedimentitas marinas se han reconocido dos asociaciones consideradas diacrónicas. Las más antigua, referida · al Mioceno medio, procede de los afloramientos del ·"Entrerriense" de Patagonia, agrupandó seis especies, en su mayoría descriptas aquí por primera vez: Patagophyseter rionegrensis (Gondar) nueva combinación (Cetacea, Physeteridae); Notoziphius bruneti gen. y esp. nuevos (Cetacea, Ziphiidae); Goos valdesensis gen. y esp. nuevos (Cetacea, Balenidae); "Plesiocetus" notopelagicus Cabrera, 1926 (Cetacea, Cetotheriidae); Kawas benegasii gen. -
Evolução, Hegemonia E Desaparecimento Dos Sirénios Dos Mares Europeus Ao Longo Do Cenozoico
Universidade de Lisboa Faculdade de Ciências Departamento de Geologia Evolução, hegemonia e desaparecimento dos sirénios dos mares europeus ao longo do Cenozoico causas endógenas (alterações climáticas globais) ou exógenas (ambiente galáctico)? Gonçalo Abreu Prista Dissertação Mestrado em Ciências do Mar 2012 Universidade de Lisboa Faculdade de Ciências Departamento de Geologia Evolução, hegemonia e desaparecimento dos sirénios dos mares europeus ao longo do Cenozoico causas endógenas (alterações climáticas globais) ou exógenas (ambiente galáctico)? Gonçalo Abreu Prista Dissertação Mestrado em Ciências do Mar Orientadores: Professor Doutor Mário Albino Cachão Professor Doutor Rui Jorge Agostinho 2012 EVOLUÇÃO, HEGEMONIA E DESAPARECIMENTO DOS SIRÉNIOS DOS MARES EUROPEUS AO LONGO DO CENOZOICO causas endógenas (alterações climáticas globais) ou exógenas (ambiente galáctico)? GONÇALO ABREU PRISTA ORIENTAÇÃO CIENTÍFICA: PROF. DOUTOR MÁRIO ALBINO PIO CACHÃO Professor Auxiliar Agregado do Departamento de Geologia da Faculdade de Ciências da Universidade de Lisboa Membro do Centro de Geologia da Universidade de Lisboa PROF. DOUTOR RUI JORGE AGOSTINHO Professor Auxiliar Agregado do Departamento de Física da Faculdade de Ciências da Universidade de Lisboa Membro do Centro de Astronomia e Astrofísica da Universidade de Lisboa Director do Observatório Astronómico de Lisboa iii "Graças aos descobrimentos da Paleontologia, a História Natural é História, no sentido literal da palavra" Albert Gaudry (1827 - 1908). "O azoto no nosso DNA, o cálcio nos nossos dentes, o ferro no nosso sangue, o carbono nas nossas tartes de maçã foram feitos no interior de estrelas em colapso. Nós somos feitos de material estelar" Carl Sagan (1934 - 1996) iv AGRADECIMENTOS Primeiro aos meus pais, pois sem o seu apoio, a todos os níveis, este mestrado e esta dissertação não seriam possíveis. -
The Interatheriinae Notoungulates from the Middle Miocene Collón Curá Formation in Argentina
The Interatheriinae notoungulates from the middle Miocene Collón Curá Formation in Argentina BÁRBARA VERA, MARCELO REGUERO, and LAUREANO GONZÁLEZ-RUIZ Vera, B., Reguero, M., and González-Ruiz, L. 2017. The Interatheriinae notoungulates from the middle Miocene Collón Curá Formation in Argentina. Acta Palaeontologica Polonica 62 (4): 845–863. The Interatheriinae (Notoungulata, Interatheriidae) from the Collón Curá Formation (Colloncuran South American Land Mammal Age, SALMA) are revised here, based on old and new collections from western Neuquén, Río Negro, and Chubut provinces where this geologic unit crops out. After a detailed study of the holotype of Icochilus endiadys, we conclude that its cranial and dental morphology are diagnostic of the genus Protypotherium, and as a result we include I. endiadys in this genus (P. endiadys comb. nov.). Deciduous dentition and postcranial remains are also ascribed to P. endiadys, which allows us to determine its pattern of dental eruption and describe part of its limbs, expanding its diagnosis. In addition, we describe a new species of Protypotherium, P. colloncurensis sp. nov., which differs from P. endiadys in having larger size, a more robust mandible, strongly imbricate upper molars, a well-developed parastyle on P1, a subcircular and non-overlapping p1, a much reduced p2, and a smaller talonid on p3–4. Based on the revision, we identified only one genus of Interatheriinae in the Collón Curá Formation (i.e., Protypotherium). Protypotherium endiadys extends its distribution from Neuquén to Chubut provinces, including Río Negro; the new species, in turn, was only recognized in Río Negro Province, appearing together with P. endiadys in Estancia El Criado, Comallo, and Chico River localities. -
Stratigraphy, Sedimentology, and Geothermal Reservoir Potential of the Volcaniclastic Cura-Mallín Succession at Lonquimay, Chile
Journal of South American Earth Sciences 77 (2017) 1e20 Contents lists available at ScienceDirect Journal of South American Earth Sciences journal homepage: www.elsevier.com/locate/jsames Stratigraphy, sedimentology, and geothermal reservoir potential of the volcaniclastic Cura-Mallín succession at Lonquimay, Chile * Viviana Pedroza a, Jacobus P. Le Roux a, b, ,Nestor M. Gutierrez a, c, Vladimir E. Vicencio a a Departamento de Geología, Universidad de Chile, Casilla 13518, Correo 21, Santiago, Chile b Centro de Excelencia en Geotermia de los Andes, Casilla 13518, Correo 21, Santiago, Chile c Centro de Investigacion, Desarrollo e Innovacion de Estructuras y Materiales IDIEM (Universidad de Chile), Chile article info abstract Article history: The Tolhuaca Volcano near Lonquimay in south-central Chile has been the subject of several studies due Received 7 June 2016 to its geothermal manifestations, but little is known about the stratigraphy and reservoir potential of the Received in revised form Cura-Mallín Formation forming its basement. Field work and U-Pb dating of detrital zircons allow us to 31 March 2017 redefine this succession as the Cura-Mallín Group, consisting of the volcano-sedimentary Guapitrío Accepted 18 April 2017 Formation, sedimentary Río Pedregoso Formation, and volcano-sedimentary Mitrauquen Formation. The Available online 21 April 2017 Río Pedregoso Formation can be subdivided into three formal units, namely the Quilmahue Member, Rucananco~ Member, and Bío-Bío Member. The base of the Quilmahue Member interfingers laterally with Keywords: ± Tolhuaca Volcano the base of the Guapitrío Formation, for which a previous K/Ar date of 22.0 0.9 Ma was apparently Cura-Mallín Group discarded by the original authors. -
Genus/Species Skull Ht Lt Wt Stage Range Abalosia U.Pliocene S America Abelmoschomys U.Miocene E USA A
Genus/Species Skull Ht Lt Wt Stage Range Abalosia U.Pliocene S America Abelmoschomys U.Miocene E USA A. simpsoni U.Miocene Florida(US) Abra see Ochotona Abrana see Ochotona Abrocoma U.Miocene-Recent Peru A. oblativa 60 cm? U.Holocene Peru Abromys see Perognathus Abrosomys L.Eocene Asia Abrothrix U.Pleistocene-Recent Argentina A. illuteus living Mouse Lujanian-Recent Tucuman(ARG) Abudhabia U.Miocene Asia Acanthion see Hystrix A. brachyura see Hystrix brachyura Acanthomys see Acomys or Tokudaia or Rattus Acarechimys L-M.Miocene Argentina A. minutissimus Miocene Argentina Acaremys U.Oligocene-L.Miocene Argentina A. cf. Murinus Colhuehuapian Chubut(ARG) A. karaikensis Miocene? Argentina A. messor Miocene? Argentina A. minutissimus see Acarechimys minutissimus Argentina A. minutus Miocene? Argentina A. murinus Miocene? Argentina A. sp. L.Miocene Argentina A. tricarinatus Miocene? Argentina Acodon see Akodon A. angustidens see Akodon angustidens Pleistocene Brazil A. clivigenis see Akodon clivigenis Pleistocene Brazil A. internus see Akodon internus Pleistocene Argentina Acomys L.Pliocene-Recent Africa,Europe,W Asia,Crete A. cahirinus living Spiny Mouse U.Pleistocene-Recent Israel A. gaudryi U.Miocene? Greece Aconaemys see Pithanotomys A. fuscus Pliocene-Recent Argentina A. f. fossilis see Aconaemys fuscus Pliocene Argentina Acondemys see Pithanotomys Acritoparamys U.Paleocene-M.Eocene W USA,Asia A. atavus see Paramys atavus A. atwateri Wasatchian W USA A. cf. Francesi Clarkforkian Wyoming(US) A. francesi(francesci) Wasatchian-Bridgerian Wyoming(US) A. wyomingensis Bridgerian Wyoming(US) Acrorhizomys see Clethrionomys Actenomys L.Pliocene-L.Pleistocene Argentina A. maximus Pliocene Argentina Adelomyarion U.Oligocene France A. vireti U.Oligocene France Adelomys U.Eocene France A. -
Mammalia, Litopterna) from Quebrada Fiera (Late Oligocene), Mendoza Province, Argentina
Andean Geology 46 (2): 368-382. May, 2019 Andean Geology doi: 10.5027/andgeoV46n2-3109 www.andeangeology.cl Macraucheniidae and Proterotheriidae (Mammalia, Litopterna) from Quebrada Fiera (Late Oligocene), Mendoza Province, Argentina *Gabriela I. Schmidt1, Esperanza Cerdeño2, Santiago Hernández del Pino2 1 Laboratorio de Paleontología de Vertebrados, Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción (CICYTTP, CONICET)-Provincia de ER-UADER, Materi y España, E3105BWA, Diamante, Entre Ríos, Argentina. [email protected] 2 Paleontología, IANIGLA, CCT-CONICET Mendoza, Avda. Ruiz Leal s/n, 5500 Mendoza, Argentina. [email protected]; [email protected] * Corresponding author: [email protected] ABSTRACT. In this contribution we present new specimens of Litopterna recovered during the last decade in Que- brada Fiera (Mendoza Province, Argentina), whose fossiliferous sediments, currently recognized as the base of Agua de la Piedra Formation, are assignable to Late Oligocene (Deseadan South American Land Mammal Age). Two remains mentioned in the first publication on this locality were neither detailed nor described, and they have not been located in the corresponding repository. The new material consists of postcranial fragmentary remains (astragali, calcaneum, and metapodials) of Macraucheniidae (Cramaucheniinae) and an incomplete upper molar (M3) of Proterotheriidae (Proterotheriinae). These few remains of litopterns contrast with the abundance of notoungulates at Quebrada Fiera. A comparative study was carried out with material from Patagonia (Argentina) and taxa recorded in Bolivia and Peru for the same temporal interval. The specimens of Cramaucheniinae are assigned to Coniopternium andinum and the molar of Proterotheriinae to cf. Lambdaconus suinus. This contribution allows us to extend the geographical range of Coniop- ternium, filling the gap between the Patagonian and lower latitude localities (Bolivia and Peru) in which this genus was found. -
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). -
Insights Into South American Native Ungulate and Caviomorph Paleobiology
UC Santa Barbara UC Santa Barbara Electronic Theses and Dissertations Title Insights into South American Native Ungulate and Caviomorph Paleobiology Permalink https://escholarship.org/uc/item/84t4p8r1 Author McGrath, Andrew Publication Date 2021 Supplemental Material https://escholarship.org/uc/item/84t4p8r1#supplemental Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California UNIVERSITY OF CALIFORNIA Santa Barbara Insights into South American Native Ungulate and Caviomorph Paleobiology A dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Earth Science by Andrew John McGrath Committee in Charge: Professor André Wyss, Chair Professor Susannah Porter Professor Bruce Tiffney June 2021 The dissertation of Andrew John McGrath is approved. ________________________________________ Susannah Porter ________________________________________ Bruce Tiffney ________________________________________ André Wyss, Committee Chair June 2021 Insights into South American Native Ungulate and Caviomorph Paleobiology Copyright © 2021 by Andrew John McGrath iii ACKNOWLEDGEMENTS To my family and friends who supported me through this journey. Thank you to all those who collected, prepared, and curated the fossils on which this thesis is based. Thank you to my committee members and research collaborators whose revisions and suggestions improved the quality of this dissertation. iv VITA OF ANDREW JOHN MCGRATH June 2021 EDUCATION Bachelor of Arts in Biology, -
Galerix Freudenthal, from the Upper Miocene of Gargano, Italy
Butler, Giant Miocene insectivore Deinogalerix from Gargano, Scripta Geol. 57 (1980) 1 The giant erinaceid insectivore, Deino• galerix Freudenthal, from the Upper Miocene of Gargano, Italy P. M. Butler Butler, P. M. The giant erinaceid insectivore, Deinogalerix Freudenthal, from the Upper Miocene of Gargano, Italy. — Scripta Geol., 57: 1 - 72, 17 figs., 3 pis., Leiden, June 1981. A detailed description of Deinogalerix is provided. In addition to the type species, four new species are distinguished: D. freudenthali, D. minor, D. brevirostris, and D. intermedins. There were two lineages, which differed in size. Deinogalerix was not directly derived from any of the Galericinae known from Europe but was proba• bly an immigrant from Asia. It is interpreted as a predator which captured prey by a snapping action of the jaws. P. M. Butler, Department of Zoology, Royal Holloway College, Alderhurst, Bake- ham Lane, Englefield Green, Surrey, TW20 9TY, England. Introduction 2 General description 2 Dentition 2 Skull 8 Brain-cast 14 Mandible 15 Vertebral column 17 Pectoral girdle and fore-limb 22 Pelvis and hind-limb 28 Body proportions 33 Speciation 36 Taxonomy and list of specimens 37 Comparisons and relationships 47 Mode of life 53 References 56 Tables of measurements 58 2 Butler, Giant Miocene insectivore Deinogalerix from Gargano, Scripta Geol. 57 (1980) Introduction In 1972 Freudenthal published a preliminary description of Deinogalerix koe~ nigswaldi, a giant erinaceid insectivore from fissure deposits on the Gargano Peninsula of Italy. The deposits are considered to be Late Miocene (Late Val- lesian - Turolian) in age (Freudenthal, 1971). The peculiar fauna shows that the area was at that time an island on which evolution proceeded in isolation from the European mainland.