Curriculum Vitae Virginia L. Naples Date
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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. -
O Ssakach Drapieżnych – Część 2 - Kotokształtne
PAN Muzeum Ziemi – O ssakach drapieżnych – część 2 - kotokształtne O ssakach drapieżnych - część 2 - kotokształtne W niniejszym artykule przyjrzymy się ewolucji i zróżnicowaniu zwierząt reprezentujących jedną z dwóch głównych gałęzi ewolucyjnych w obrębie drapieżnych (Carnivora). Na wczesnym etapie ewolucji, drapieżne podzieliły się (ryc. 1) na psokształtne (Caniformia) oraz kotokształtne (Feliformia). Paradoksalnie, w obydwu grupach występują (bądź występowały w przeszłości) formy, które bardziej przypominają psy, bądź bardziej przypominają koty. Ryc. 1. Uproszczone drzewo pokrewieństw ewolucyjnych współczesnych grup drapieżnych (Carnivora). Ryc. Michał Loba, na podstawie Nyakatura i Bininda-Emonds, 2012. Tym, co w rzeczywistości dzieli te dwie grupy na poziomie anatomicznym jest budowa komory ucha środkowego (bulla tympanica, łac.; ryc. 2). U drapieżnych komora ta jest budowa przede wszystkim przez dwie kości – tylną kaudalną kość entotympaniczną i kość ektotympaniczną. U kotokształtnych, w miejscu ich spotkania się ze sobą powstaje ciągła przegroda. Obydwie części komory kontaktują się ze sobą tylko za pośrednictwem małego okienka. U psokształtnych 1 PAN Muzeum Ziemi – O ssakach drapieżnych – część 2 - kotokształtne Ryc. 2. Widziane od spodu czaszki: A. baribala (Ursus americanus, Ursidae, Caniformia), B. żenety zwyczajnej (Genetta genetta, Viverridae, Feliformia). Strzałkami zaznaczono komorę ucha środkowego u niedźwiedzia i miejsce występowania przegrody w komorze żenety. Zdj. (A, B) Phil Myers, Animal Diversity Web (CC BY-NC-SA -
Michael O. Woodburne1,* Alberto L. Cione2,**, and Eduardo P. Tonni2,***
Woodburne, M.O.; Cione, A.L.; and Tonni, E.P., 2006, Central American provincialism and the 73 Great American Biotic Interchange, in Carranza-Castañeda, Óscar, and Lindsay, E.H., eds., Ad- vances in late Tertiary vertebrate paleontology in Mexico and the Great American Biotic In- terchange: Universidad Nacional Autónoma de México, Instituto de Geología and Centro de Geociencias, Publicación Especial 4, p. 73–101. CENTRAL AMERICAN PROVINCIALISM AND THE GREAT AMERICAN BIOTIC INTERCHANGE Michael O. Woodburne1,* Alberto L. Cione2,**, and Eduardo P. Tonni2,*** ABSTRACT The age and phyletic context of mammals that dispersed between North and South America during the past 9 m.y. is summarized. The presence of a Central American province of cladogenesis and faunal differentiation is explored. One apparent aspect of such a province is to delay dispersals of some taxa northward from Mexico into the continental United States, largely during the Blancan. Examples are recognized among the various xenar- thrans, and cervid artiodactyls. Whereas the concept of a Central American province has been mentioned in past investigations it is upgraded here. Paratoceras (protoceratid artio- dactyl) and rhynchotheriine proboscideans provide perhaps the most compelling examples of Central American cladogenesis (late Arikareean to early Barstovian and Hemphillian to Rancholabrean, respectively), but this category includes Hemphillian sigmodontine rodents, and perhaps a variety of carnivores and ungulates from Honduras in the medial Miocene, as well as peccaries and equids from Mexico. For South America, Mexican canids and hy- drochoerid rodents may have had an earlier development in Mexico. Remarkably, the first South American immigrants to Mexico (after the Miocene heralds; the xenarthrans Plaina and Glossotherium) apparently dispersed northward at the same time as the first Holarctic taxa dispersed to South America (sigmodontine rodents and the tayassuid artiodactyls). -
La Brea and Beyond: the Paleontology of Asphalt-Preserved Biotas
La Brea and Beyond: The Paleontology of Asphalt-Preserved Biotas Edited by John M. Harris Natural History Museum of Los Angeles County Science Series 42 September 15, 2015 Cover Illustration: Pit 91 in 1915 An asphaltic bone mass in Pit 91 was discovered and exposed by the Los Angeles County Museum of History, Science and Art in the summer of 1915. The Los Angeles County Museum of Natural History resumed excavation at this site in 1969. Retrieval of the “microfossils” from the asphaltic matrix has yielded a wealth of insect, mollusk, and plant remains, more than doubling the number of species recovered by earlier excavations. Today, the current excavation site is 900 square feet in extent, yielding fossils that range in age from about 15,000 to about 42,000 radiocarbon years. Natural History Museum of Los Angeles County Archives, RLB 347. LA BREA AND BEYOND: THE PALEONTOLOGY OF ASPHALT-PRESERVED BIOTAS Edited By John M. Harris NO. 42 SCIENCE SERIES NATURAL HISTORY MUSEUM OF LOS ANGELES COUNTY SCIENTIFIC PUBLICATIONS COMMITTEE Luis M. Chiappe, Vice President for Research and Collections John M. Harris, Committee Chairman Joel W. Martin Gregory Pauly Christine Thacker Xiaoming Wang K. Victoria Brown, Managing Editor Go Online to www.nhm.org/scholarlypublications for open access to volumes of Science Series and Contributions in Science. Natural History Museum of Los Angeles County Los Angeles, California 90007 ISSN 1-891276-27-1 Published on September 15, 2015 Printed at Allen Press, Inc., Lawrence, Kansas PREFACE Rancho La Brea was a Mexican land grant Basin during the Late Pleistocene—sagebrush located to the west of El Pueblo de Nuestra scrub dotted with groves of oak and juniper with Sen˜ora la Reina de los A´ ngeles del Rı´ode riparian woodland along the major stream courses Porciu´ncula, now better known as downtown and with chaparral vegetation on the surrounding Los Angeles. -
Optimizing Phylogenetic Supertrees Using Answer Set Programming Laura Koponen1, Emilia Oikarinen1, Tomi Janhunen1, and Laura Säilä2 1 HIIT / Dept
Optimizing Phylogenetic Supertrees Using Answer Set Programming Laura Koponen1, Emilia Oikarinen1, Tomi Janhunen1, and Laura Säilä2 1 HIIT / Dept. Computer Science, Aalto University 2 Dept. Geosciences and Geography, University of Helsinki Computational logic day 2015 — Aalto, Finland Outline Introduction — the supertree problem ASP Encodings — trees, quartets and projections Experiments — Felidae data Conclusions Koponen et al., Optimizing Phylogenetic Supertrees Using ASP Computational logic day 2015 2/31 I Several measures can be used used I Optimal tree not necessarily unique I Output: a phylogenetic tree that covers all taxa from input and reflects the relationships in input as well as possible The supertree problem I Input: a set of overlapping, possibly conflicting phylogenetic trees (rooted, leaf-labeled) Koponen et al., Optimizing Phylogenetic Supertrees Using ASP Computational logic day 2015 3/31 The supertree problem I Input: a set of overlapping, possibly conflicting phylogenetic trees (rooted, leaf-labeled) I Output: a phylogenetic tree that covers all taxa from input and reflects the relationships in input as well as possible I Several measures can be used used I Optimal tree not necessarily unique Koponen et al., Optimizing Phylogenetic Supertrees Using ASP Computational logic day 2015 4/31 Solving the supertree problem I Typically heuristic methods are used, e.g. matrix representation with Parsimony (MRP) [Baum, 1992; Ragan,1992] I input trees encoded into a binary matrix, and maximum parsimony analysis is then used to construct -
Mammals and Stratigraphy : Geochronology of the Continental Mammal·Bearing Quaternary of South America
MAMMALS AND STRATIGRAPHY : GEOCHRONOLOGY OF THE CONTINENTAL MAMMAL·BEARING QUATERNARY OF SOUTH AMERICA by Larry G. MARSHALLI, Annallsa BERTA'; Robert HOFFSTETTER', Rosendo PASCUAL', Osvaldo A. REIG', Miguel BOMBIN', Alvaro MONES' CONTENTS p.go Abstract, Resume, Resumen ................................................... 2, 3 Introduction .................................................................. 4 Acknowledgments ............................................................. 6 South American Pleistocene Land Mammal Ages ....... .. 6 Time, rock, and faunal units ...................... .. 6 Faunas....................................................................... 9 Zoological character and history ................... .. 9 Pliocene-Pleistocene boundary ................................................ 12 Argentina .................................................................... 13 Pampean .................................................................. 13 Uquian (Uquiense and Puelchense) .......................................... 23 Ensenadan (Ensenadense or Pampeano Inferior) ............................... 28 Lujanian (LuJanense or Pampeano lacus/re) .................................. 29 Post Pampean (Holocene) ........... :....................................... 30 Bolivia ................ '...................................................... ~. 31 Brazil ........................................................................ 37 Chile ........................................................................ 44 Colombia -
Diplomarbeit
DIPLOMARBEIT KILLING BEHAVIOR IN SMILODON FATALIS (MAMMALIA, CARNIVORA, FELIDAE) BASED ON FUNCTIONAL ANATOMY AND BODY PROPORTIONS OF THE FRONT- AND HIND LIMBS BY JENS-UWE SCHMIEDER GEOLOGISCHES INSTITUT DER EBERHARDT-KARLS-UNIVERSITÄT TÜBINGEN JULY 2000 Jens Schmieder Page II 02.07.2003 Hiermit versichere ich, die vorliegende Arbeit selbständig und nur unter Zuhilfenahme erlaubter und angegebener Hilfsmittel angefertigt zu haben. Tübingen, August 2000. (Jens Schmieder) Jens Schmieder Page III 02.07.2003 Abstract Elongated canines exclusively evolved in carnivores, which are able to stabilize their victims with their anterior extremities. It was shown that power and agility of the front limbs are strongly correlated with the development of sabers. Limb- and skull proportions of the extinct cat Smilodon fatalis were therefore compared with those of six extant species of large felids and those of Canis lupus. Furthermore, differences in hunting behavior and locomotory capabilities were analyzed. Ratios of limb segment lengths have been shown to relate to functional and locomotory differences (e.g., cursoriality) in both extinct and extant felines. S. fatalis is equipped with relatively short and sturdy limbs. Moreover, it possessed a great angle of inclination of the olecranon fossa relative to the long axis of the humerus, in addition to a wide and laterally oriented radial notch. The radial head was more circular than in any other extant cat member. Additionally, the Teres major muscle inserts further away from the shoulder joint and the joints are more powerfully built and demonstrate a great amount of strength and flexibility. It is very likely that Smilodon preyed on the large contemporary megafauna because of its overall more powerful anatomy compared to that of modern felines. -
Endemism and Migration in the Kochkor Basin? Identification and Description of Adcrocuta Eximia (Mammalia: Carnivora: Hyaenidae) and C.F
Palaeontologia Electronica palaeo-electronica.org Endemism and migration in the Kochkor Basin? Identification and description of Adcrocuta eximia (Mammalia: Carnivora: Hyaenidae) and c.f. Paramachaerodus (Mammalia: Carnivora: Felidae) fossils at the Miocene locality of Ortok, Kyrgyzstan Sophie A. Miller, Paul Z. Barrett, Win N.F. McLaughlin, and Samantha S.B. Hopkins ABSTRACT Dentition from a Miocene hyaenid and a saber-toothed felid are described from the Chu Formation of Kyrgyzstan. Identified as Adcrocuta eximia (UOMNH F-70508) and c.f. Paramachaerodus (UOMNH F-70509), these represent one of the only formal- ized descriptions of fossil taxa from the Miocene in Kyrgyzstan. These specimens were recovered from the Ortok locality at the northwestern corner of the Kochkor Basin, the youngest of the known bone-bed localities in the Chu Formation. Using bio- and mag- netostratigraphy, the Chu Formation is attributed to the late Miocene to Pliocene, deposited approximately at 8 to 4 Ma. The Adcrocuta specimen consists of a partial dentary with condylar and angular processes, one upper, five lower teeth, and the par- tial root and alveoli of a fifth mandibular tooth. The c.f. Paramachaerodus specimen includes a partial M1, P4, and C1, and exhibits the features of the “scimitar-toothed” machairodontines. Preserved diagnostic characters place the Kyrgyz specimen closest to P. ogygia, although with certain features similar to that of P. transasiaticus, such as incipient crenulations on the canine. However, the age of the Kyrgyz specimen, approximately 6 Ma, is substantially younger than what is known for either of these taxa. We therefore hypothesize this Paramachaerodus specimen could be evidence of an endemic taxon in Kyrgyzstan from earlier migrating Asian species, potentially due to geological uplift with the Tien Shan Mountains. -
Poster-Los Angeles
A Morphometric Characterization of Cranial Shape in Terrestrial Carnivorans Based on Fourier Analysis 1 1 2 1 PÉREZ-CLAROS1, Juan; MARTÍN-SERRA, Alberto; FIGUEIRIDO, Borja; JANIS, Christine & PALMQVIST, Paul 1) University of Malaga, Malaga, Spain 2) Brown Univ, Providence, RI, United States A number of studies have shown that skull morphology reflects the ecological adaptations of terrestrial carnivores as well as their phylogenetic legacy. Here we use Fourier shape analysis for characterizing morphometrically the dorsal outline of the cranium in a number of extant and extinct species of the order Carnivora. Material Extant Extinct Results and Conclusions Felidae Herpestidae Vulpes rueppellii (7) Acinonyx jubatus (19) Cynictis penicillata (1) Vulpes velox (1) Felis caracal (5) Suricata suricatta (7) Ursidae Lynx lynx (10) Canidae Ursus americanus (5) Species Origin Felis maniculata (1) Canis adustus (2) Ursus arctos (5) Felinae Felis temmincki (1) Cuon alpinus (9) Ailuropoda melanoleuca (3) Panthera atrox (2) Rancho LaBrea 2900-3 and 2900-7 (Merriam & Stock, 1932) Felis tigrina (1) Canis aureus (6) Helarctos malayanus (5) Sivapanthera linxiaensis (1) V 13536 (Zhanxiang et al. 2004) Felis serval (1) Chrysocyon brachyurus (2) Tremarctos ornatus (4) Lynx shansius (2) HMV 1226 and HMV 1228 (Zhanxiang et al. 2004) Neofelis nebulosa (12) Canis latrans (6) Ursus maritimus (5) Machairodontinae Puma concolor (14) Canis lupus (10) Ursus ursinus (5) Dinofelis sp. (1) OMO 28-67-1075 (Werdelin & Lewis, 2000) Panthera onca (10) Canis mesomelas (2) Ailuridae Megantereon whitei (1) D 1341 Panthera uncia (8) Canis simensis (4) Ailurus fulgens (2) Megantereon cultridens (3) SE-243, QSV-1150 (Viret, 1954); Nihowan (Teilhard de Chardin & Piveteau, 1930) Panthera pardus (10) Cerdocyon thous (6) Procionidae Megantereon nihowanensis (3) HMV 1215 and HMV 1217 (Zhanxiang et al. -
ABSTRACT How Sabertoothed Felids Have Evolved Their Iconic Morphology Remains Unclear Because of the Patchy Fossil Record of Early Machairodontines
Journal of Mammalian Evolution https://doi.org/10.1007/s10914-021-09541-0 Accepted: 8 March 2021 Morphometric analysis of the mandible of primitive sabertoothed felids from the late Miocene of Spain Short title: Morphometric analysis of early sabertoothed felids Narimane Chatar1,*, Valentin Fischer1, Gema Siliceo2, Mauricio Antón2, Jorge Morales2, and Manuel J. Salesa2 1 Evolution and Diversity Dynamics Lab, Université de Liège, Belgium 2 Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, C/José Gutiérrez Abascal, 2. 28006 Madrid, Spain * Corresponding author: [email protected] ABSTRACT How sabertoothed felids have evolved their iconic morphology remains unclear because of the patchy fossil record of early machairodontines. Batallones localities in the Madrid region (Spain) have the potential to clarify this as two sites have yielded hundreds of fossils of the early machairodontines Promegantereon ogygia and Machairodus aphanistus. Previous analyses suggested that these two sites are not contemporaneous and a morphological drift between cavities was described for these two species; characterizing intraspecific variability is thus important to better understand the evolution of machairodontines. To tackle this issue, we modelled 62 felid mandibles in 3D using a laser scanner. We applied 3D geometric morphometrics (3D GM) and linear morphometrics on these models to test for differences in populations and to better characterize the morphology of early machairodontines. Both linear measurements and 3D data reveal an absence of morphological changes in mandible shape between the two sites. Batallones machairodontines are closer to felines than to other, more derived machairodontines in mandibular morphology, suggesting the existence of rapid shift in the mandibular shape between primitive and derived members of the clade. -
Proceedings: Shrubland Dynamics -- Fire and Water
Proceedings: Shrubland Dynamics—Fire and Water Lubbock, TX, August 10-12, 2004 United States Department of Agriculture Forest Service Rocky Mountain Research Station Proceedings RMRS-P-47 July 2007 Sosebee, Ronald E.; Wester, David B.; Britton, Carlton M.; McArthur, E. Durant; Kitchen, Stanley G., comps. 2007. Proceedings: Shrubland dynamics—fire and water; 2004 August 10-12; Lubbock, TX. Proceedings RMRS-P-47. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 173 p. Abstract The 26 papers in these proceedings are divided into five sections. The first two sections are an introduction and a plenary session that introduce the principles and role of the shrub life-form in the High Plains, including the changing dynamics of shrublands and grasslands during the last four plus centuries. The remaining three sections are devoted to: fire, both prescribed fire and wildfire, in shrublands and grassland-shrubland interfac- es; water and ecophysiology shrubland ecosystems; and the ecology and population biology of several shrub species. Keywords: wildland shrubs, fire, water, ecophysiology, ecology The use of trade or firm names in this publication is for reader information and does not imply endorsement by the U.S. Department of Agriculture or any product or service. Publisher’s note: Papers in this report were reviewed by the compilers. Rocky Mountain Research Station Publishing Services reviewed papers for format and style. Authors are responsible for content. You may order additional copies of this publication by sending your mailing information in label form through one of the following media. Please specify the publication title and series number. -
Caught in the Act! a Bearded Capuchin Monkey Smashes a Quartz Cobble on an Anvilstone in the Serra Da Capivara National Park in Brazil
Volume 33, Number 3 ■ July, 2018 Center for the Study of the First Americans Department of Anthropology Texas A&M University 4352 TAMU College Station, TX 77843-4352 www.centerfirstamericans.com Caught in the act! A bearded capuchin monkey smashes a quartz cobble on an anvilstone in the Serra da Capivara National Park in Brazil. Witnessed and filmed by archaeologist Tiago Falótico of University of São Paulo, the monkey shattered the cobble, then threw it aside and licked up the dust, apparently to ingest the mineral and vegal content. Of interest to archaeologists is a sharp-edged fragment created by the monkey as a by-product, which exactly mimics a conchoidal fragment made by a human flintknapper. Lithics analysts consequently caution of the need to refine the “criteria commonly used to distinguish intentional hominin lithic assemblages.” This instance of monkey handiwork also challenges definitions in archaeology: Is the rock fragment an artifact? By definition that’s an object created by humans. Since the monkey wasn’t observed using the rock fragment in any manner, is it a tool? For our story, see page 9. Photo by Michael Haslam he Center for the Study of the First Americans fosters research and public T interest in the Peopling of the Americas. The Center, an integral part of the Department of Anthropology at Texas A&M University, pro motes inter disciplinary scholarly dialogue among physical, geological, biological and social scientists. The Mammoth Trumpet, news magazine of the Center, seeks to involve you in the peopling of the Americas by report- ing on developments in all pertinent areas of knowledge.