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  • 101.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Kurtén, Björn
    Allohyaena (Mammalia: Carnivora): giant hyaenid from the Late Miocene of Hungary1999Inngår i: Zoological Journal of the Linnean Society, ISSN 0024-4082, E-ISSN 1096-3642, Vol. 126, s. 319-334Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The topotypic material of the giant Late Miocene hyaenid Allohyaena kadici Kretzoi is described. New data on the deciduous dentition shows unambiguously that A. kadici is a hyaenid and not a percrocutid as reported by some previous authors. A. kadici is compared to the large hyaenids Adcrocuta eximia and Crocuta crocuta. These comparisons show that A. kadici has a mixture of primitive characters such as dp4 morphology, retention of m2, long and slender premolars and a large protocone on P4, and derived characters such as a preparastyle on P4, an internal root on P3 and a uniquely derived talonid structure of m 1. This combination of features makes A. kadici difficult to classify, but it is considered to probably be most closely related to derived, bone-cracking hyaenids such as Pachycrocuta and Crocuta. A. kadici is rare in the fossil record, being found at only two sites. We suggest that the reason for this rarity is that it had a geographic and stratigraphic range which is poorly sampled in the Miocene fossil record of Europe.

  • 102.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    A contextual review of the Carnivora of Kanapoi2017Inngår i: Journal of Human Evolution, ISSN 0047-2484, E-ISSN 1095-8606Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The Early Pliocene is a crucial time period in carnivoran evolution. Holarctic carnivoran faunas suffered a turnover event at the Miocene-Pliocene boundary. This event is also observed in Africa but its onset is later and the process more drawn-out. Kanapoi is one of the earliest faunas in Africa to show evidence of a fauna that is more typical Pliocene than Miocene in character. The taxa recovered from Kanapoi are: Torolutra sp., Enhydriodon (2 species), Genetta sp., Helogale sp., Homotherium sp., Dinofelis petteri, Felis sp., and Parahyaena howelli. Analysis of the broader carnivoran context of which Kanapoi is an example shows that all these taxa are characteristic of Plio-Pleistocene African faunas, rather than Miocene ones. While some are still extant and some went extinct in the Early Pleistocene, P. howelli is unique in both originating and going extinct in the Early Pliocene.

  • 103.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    A revision of the genus Dinofelis (Mammalia, Felidae)2001Inngår i: Zoological Journal of the Linnean Society, ISSN 0024-4082, E-ISSN 1096-3642, Vol. 132, s. 147-258Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper consists of a taxonomic and systematic revision of the extinct felid genus Dinofelis (Felidae, Machairodontinae) and an analysis of its ecomorphology and evolution. Dinofelis has a broad distribution, with material from all northern continents and Africa, the latter of which was the apparent centre of evolution of the genus. We describe new material of Dinofelis from a number of sites in eastern Africa and reconsider all previously described material. We name two new species and identify several other distinct species-level taxa but refrain from naming these due to a paucity of well-preserved material. At the same time, we synonymize the two named Asian species, D. cristata and D. abeli, of which the former has priority. There are few characters useful in systematic analysis, but we can suggest at least one migration from eastern to southern Africa. Ecomorphological analysis of both craniodental and postcranial characters suggests that Dinofelis in many respects converged on modern pantherine cats in morphology and behaviour, a trend culminating in the South African D. barlowi and the Asian D. cristata, which are the most pantherine-like of all machairodont felids. This trend is reversed in the evolution of the youngest species, D. piveteaui, which is also the most machairodont in its ecomorphology. The timing of the extinction of Dinofelis is difficult to determine. Outside Africa material is scarce at all times, while in Africa the apparent extinction of Dinofelis at about 1.4 Mya coincides with the end of the good, semi-continuous fossil record present in eastern Africa from about 4Mya onwards. Dating of Kanam East (with D. piveteaui) to the Jaramillo Subchron (1.070–0.990 Mya) suggests possible survival considerably later. Thus, the extinction datum for Dinofelis cannot at present be firmly established.

  • 104.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    Carnivora from the South Turkwel hominid site, northern Kenya2000Inngår i: Journal of Paleontology, ISSN 0022-3360, E-ISSN 1937-2337, Vol. 74, s. 1173-1180Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A small collection of carnivoran fossils from the South Turkwel hominid site is described. The fauna is composed of Megantereon ekidoit new species, Homotherium sp., Crocuta cf. dietrichi, cf. Pachycrocuta sp., Canis new species A., cf. Civettictis sp., Viverridae or Herpestidae indet., and Lutrinae indet. The record of Megantereon and Canis, as well as Pachycrocuta and Civettictis, if these genera are identified correctly, represents the earliest occurrences of their respective taxa in Africa. These specimens suggest a relatively rapid reorganization of the carnivore guild some time around 3.5 Ma, followed by a longer period of transition to a fauna more comparable in composition to the modern one.

  • 105.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    Koobi Fora Research Project Volume 7: The Carnivora2013Bok (Annet vitenskapelig)
  • 106.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    New species of Crocuta from the Early Pliocene of Kenya, with an overview of early Pliocene hyenas of eastern Africa2008Inngår i: Journal of Vertebrate Paleontology, ISSN 0272-4634, E-ISSN 1937-2809, Vol. 28, s. 1162-1170Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A new species of Crocuta (spotted hyenas), Crocuta eturono n. sp., from the Early Pliocene of the Turkana Basin, Kenya is described. The species has been recovered from LO6S, a site in the Kataboi Member of the Nachukui Formation, on the western side of Lake Turkana. The site is dated to >3.4 Ma. The new species differs from all previously identified species of Crocuta in its length proportions of the cheek teeth, having a very long m1 and short p3 and p4. The species is also tentatively identified from the Tulu Bor Member of the Koobi Fora Formation, east side of Lake Turkana. The new species provides information for a discussion of the structure of the hyena guild in eastern Africa 4–3 Ma. Three groups of taxa are identified with distinct distributions. It is hypothesized that specific ecomorphologies of each group account for these distinctions.

  • 107.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    Plio-Pleistocene Carnivora of eastern Africa: species richness and turnover patterns2005Inngår i: Zoological Journal of the Linnean Society, ISSN 0024-4082, E-ISSN 1096-3642, Vol. 144, s. 121-144Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper presents an up-to-date and detailed overview of the Plio-Pleistocene fossil record of Carnivora in eastern Africa. Major events in the carnivoran lineages present in the region are discussed and stratigraphic ranges of all species-level taxa are provided. The compiled data are used for quantitative analyses of species richness and turnover. Sampling is considered to be adequate for the interval 3.6–1.5 Mya, and poorer in the half-million-year time slices before and after this interval. Species richness peaks around 3.6–3.0 Mya and declines gradually from that time until the end of the time period analysed. Calculation of origination and extinction rates indicate that there are two peaks of origination: at 3.9–3.3 Mya (although the earlier half of this interval is biased through poor sampling) and at 2.1–1.8 Mya. The origination rate is zero in the interval 3.0–2.4 Mya. The extinction rate peaks at around 3.0 Mya after which it falls slightly, remaining nearly constant until 1.8 Mya, after which it increases considerably. The data support the hypothesis that the modern carnivoran guild of eastern Africa originated relatively recently, mostly within the last million years. There is no support in these data for a turnover pulse in Carnivora between 3 and 2 Mya.

  • 108.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    Richard Stockton College of New Jersey.
    The taxonomic identity of the type specimen of Crocuta sivalensis (Falconer, 1867)2012Inngår i: Journal of Vertebrate Paleontology, ISSN 0272-4634, E-ISSN 1937-2809, Vol. 32, s. 1453-1456Artikkel i tidsskrift (Fagfellevurdert)
  • 109.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    Haile-Selassie, Yohannes
    A critical review of African species of Eucyon (Mammalia; Carnivora; Canidae), with a new species from the Pliocene of the Woranso-Mille Area, Afar Region, Ethiopia2015Inngår i: Papers in PalaeontologyArtikkel i tidsskrift (Fagfellevurdert)
  • 110.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Long, J. A.
    Allometry in the placoderm Bothriolepis canadensis and its significance to antiarch evolution1986Inngår i: Lethaia: an international journal of palaeontology and stratigraphy, ISSN 0024-1164, E-ISSN 1502-3931, Vol. 19, s. 161-169Artikkel i tidsskrift (Fagfellevurdert)
  • 111.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Manthi, F. K.
    Carnivora from the Kanapoi hominin site, northern Kenya2012Inngår i: Journal of African Earth Sciences, ISSN 0899-5362, Vol. 64, s. 1-8Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The assemblage from Kanapoi represents the most diverse early Pliocene carnivore assemblage from sub- Saharan Africa. Carnivora from Kanapoi were originally described by Werdelin (2003a), but continuing field work has brought to light significant new material from the site, shedding new light on the earliest post-Miocene radiation of Carnivora in Africa. Most importantly, a second species of Enhydriodon has been recovered from the site, including the first specimen to include a large part of the neurocranium. This makes Kanapoi the first site to include two species of this genus. This addition to the fauna will be of prime significance to understanding the ecology and evolutionary radiation of these giant, extinct otters. Other significant new finds include additional material of a wildcat-sized felid. Finds of this group are rare, and the new Kanapoi material adds significantly to our knowledge of the stem lineage of the genus Felis, which is widespread in Africa today.

  • 112.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    McDonald, H. Gregory
    Shaw, Christopher A.
    Smilodon: The Iconic Sabertooth2018Bok (Fagfellevurdert)
  • 113.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Myrdal, Janken
    Sten, Sabine
    Patterns of stature variation in Medieval Sweden2002Inngår i: Hikuin, ISSN 0105-8118, Vol. 27, s. 293-306Artikkel i tidsskrift (Fagfellevurdert)
  • 114.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Nilsonne, Åsa
    The evolution of the scrotum and testicular descent: a phylogenetic view1999Inngår i: Journal of Theoretical Biology, ISSN 0022-5193, E-ISSN 1095-8541, Vol. 196, s. 61-72Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The adaptive significance of the scrotum and the evolution of the descent of the testicles and epididymis have been a focus of interest among biologists for a long time. In this paper we use three anatomical character states of the scrotum and descensus: (1) testicles descended and scrotal; (2) testicles descended but ascrotal; (3) testicles not descended (testicondy#). These states are then mapped on an up to date phylogeny of the Mammalia. Three main points arise out of this mapping procedure: (1) the presence of a scrotum is either primitive in extant Mammalia or primitive within eutherian mammals except Insectivora; (2) evolution has generally proceeded from a scrotal condition to progressively more ascrotal; (3) loss of testicular descensus is less common in mammalian evolution than is loss of the scrotum. In the light of these findings we discuss some current hypotheses regarding the origin and evolution of the scrotum. We find that these are all incomplete in so far as it is not the presence of the scrotum in various mammal groups that requires explaining. Instead, it is the reverse process, why the scrotum has been lost in so many groups, that should be explained. We suggest that the scrotum may have evolved before the origin of mammals, in concert with the evolution of endothermy in the mammalian lineage, and that the scrotum has been lost in many groups because descensus in many respects is a costly process that will be lost in mammal lineages as soon as an alternative solution to the problem of the temperature sensitivity of spermatogenesis is available.

  • 115.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Nilsonne, Åsa
    Fortelius, Mikael
    Testicondy and ecological opportunism predict the rapid evolution of elephants1999Inngår i: Evolutionary Theory, Vol. 12, s. 39-45Artikkel i tidsskrift (Fagfellevurdert)
  • 116.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Olsson, Lennart
    How the leopard got its spots: a phylogenetic view of the evolution of felid coat patterns1997Inngår i: Biological Journal of the Linnean Society, ISSN 0024-4066, E-ISSN 1095-8312, Vol. 62, s. 383-400Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The current theory of felid coat pattern evolution proposes that the primitive pattern is one of relatively large spots that break down into smaller spots (here denoted flecks) and rosettes while at the same time leading to various striped patterns as sidelines. We have coded the coat patterns of felids into uniform, flecks, rosettes, vertical stripes, small blotches and blotches and show by mapping these character states onto phylogenies of the family that the current theory is flawed. Instead, the primitive pattern appears to be flecks and it is from this type that nearly all other types have developed. The robustness of this hypothesis is shown by the fact that it remains unchanged regardless of which of several quite different, competing phylogenies of the family is used. The pattern of transformations reconstructed is not predicted by current theories of pattern formation and we suggest that modellers pay closer attention to the phylogenetic histories of the features that they model.

  • 117.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Peigné, Stéphane
    Carnivora2010Inngår i: Cenozoic Mammals of Africa / [ed] Werdelin, L. & Sanders, W. J., Berkeley: University of California Press, 2010, s. 603-657Kapittel i bok, del av antologi (Fagfellevurdert)
  • 118.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Sanders, W. J.
    Cenozoic Mammals of Africa2010Collection/Antologi (Fagfellevurdert)
  • 119.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Sardella, Raffaele
    The “Homotherium” from Langebaanweg and the origin of Homotherium2006Inngår i: Palaeontographica. Abteilung A, Palaozoologie, Stratigraphie, ISSN 0375-0442, Vol. 227, s. 123-130Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Craniodental and postcranial material from Langebaanweg, Cape Province, South Africa identified as or associated with Homotherium is described. Parts of this material have been described as the earliest Homotherium, but it is here concluded that the material shares no apomorphic traits with Homotherium and is better referred  to Amphimachairodus sp, indet. The earliest Homotherium known to date comes from the Odessa Catacombs, Ukraine or the Lonyumun Member, Koobi Fora Formation, Kenya, both dated slightly older than 4 Ma. Despite suggestions to the contrary, there remains  a substantial morphological gap between Homotherium and its progenitors.

  • 120.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Simpson, Scott W.
    The last amphicyonid in Africa2009Inngår i: Geodiversitas, ISSN 1280-9659, E-ISSN 1638-9395, Vol. 31, s. 775-787Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Amphicyonidae are a common element of carnivoran faunas in the early and middle Miocene of Eurasia and North America, but by the Messinian they had become extinct there, except possibly on the Indian subcontinent. In Africa, amphicyonids are poorly known from a scattering of records from the late Oligocene to the late Miocene. In this paper, we describe the last-surviving amphicyonid in Africa, from Messinian-age sediments (dated c. 6.5-5.3 Ma) of Ethiopia (Gona) and Kenya (Lothagam and possibly Lemudong’o). Th is new taxon shows unique adaptations to hypercarnivory in the lower molars and was small for an amphicyonid, dentally about the size of a coyote, Canis latrans.

  • 121.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Solounias, N.
    Studies of fossil hyaenids: the genus Adcrocuta Kretzoi and the interrelationships of some selected hyaenid taxa1990Inngår i: Zoological Journal of the Linnean Society, ISSN 0024-4082, E-ISSN 1096-3642, Vol. 98, s. 363-386Artikkel i tidsskrift (Fagfellevurdert)
  • 122.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Solounias, N.
    The Hyaenidae: taxonomy, systematics and evolution1991Inngår i: Fossils and Strata, ISSN 0300-9491, Vol. 30, s. 1-104Artikkel i tidsskrift (Fagfellevurdert)
  • 123.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Solounias, Nikos
    Evolutionary history of hyaenas in the Miocene of Europe and Western Asia1996Inngår i: The Evolution of Western Eurasian Miocene Mammal Faunas / [ed] Bernor, R.L., Fahlbusch, V. & Mittmann, H.-W., New York: Columbia University Press, 1996, s. 290-306Kapittel i bok, del av antologi (Fagfellevurdert)
  • 124.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Tullberg, Birgitta
    A comparison of two methods to study correlated discrete characters on phylogenetic trees1996Inngår i: Cladistics, ISSN 0748-3007, E-ISSN 1096-0031, Vol. 11, s. 265-277Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We use a simulation approach to study two methods proposed for the analysis of correlated discrete characters on cladograms, the concentrated changes test (CCT) and the contingent states test (CST). Both of these consider the case where there is an independent and a dependent character and assign probabilities to various events in the dependent character given one or the other state of the independent character. The CCT gives different results for symmetric and asymmetric cladograms. In the latter case, the proportion of branches reconstructed as having the derived state has less influence on the resulting probabilities. The CST is only sensitive to the proportion of derived branches, regardless of whether the tree is symmetric or asymmetric. The CCT calculates probabilities by considering character state reconstructions which are not allowed by parsimony algorithms, thereby increasing the probability of rejecting a true null hypothesis (type I error rate). We discuss some alternative questions that could be studied using these tests and also derive equations for calculating the number of possible events in the dependent character for unresolved parts of the phylogeny.

  • 125.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Turner, A.
    Solounias, N.
    Studies of fossil hyaenids: the genera Hyaenictis Gaudry and Chasmaporthetes Hay, with a reconsideration of the Hyaenidae of Langebaanweg, South Africa1994Inngår i: Zoological Journal of the Linnean Society, ISSN 0024-4082, E-ISSN 1096-3642, Vol. 111, s. 197-217Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The fossil hyaenids from Langebaanweg in South Africa are revised taxonomically using both morphological comparisons and measurement data. Ictitherium preforfex is found to be a synonym of Ikelohyaena abronia. Other hyaenid taxa in this fauna are Hyaenictitherium namaquensis, Chasmaporthetes australis and a new taxon similar to Chasmaporthetes australis in the size and shape of the M1 trigonid and other characters, but differing from this taxon in having short P3 relative to P2, a smaller anterior accessory cusp on P4 and M2 present. This taxon has previously been referred to Euryboas sp., but comparison with Eurasian hyaenids indicates that it shares diagnostic characters with Hyaenictis graeca, type species of the genus Hyaenictis. This genus is poorly known and its content is reviewed. We find that only the new species from Langebaanweg, formally described as Hyaenictis hendeyi sp. nov., and the Spanish Hyaenictis almerai probably belong in this genus, while other taxa intermittently referred to Hyaenictis belong to other genera. Thus, neither Leecyaena bosei nor Chasmaporthetes silberbergi belong in Hyaenictis.

  • 126.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Turner, A. W.
    The fossil and living Hyaenidae of Africa: present status1996Inngår i: Palaeoecology and Palaeoenvironments of Late Cenozoic Mammals: Tributes to the career of C. S. (Rufus) Churcher / [ed] Stewart, K. & Seymour, K., Toronto: University of Toronto Press, 1996, s. 637-659Kapittel i bok, del av antologi (Fagfellevurdert)
  • 127.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Turner, Alan
    Turnover in the guild of larger carnivores in Eurasia across the Miocene-Pliocene boundary1996Inngår i: Acta zoologica cracoviensia, Vol. 39, s. 585-592Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    There is considerable turnover of the mammalian fauna of western Eurasia fromthe Turolian to the mid-Villafranchian (MN 11 - 17; ca 8.5 - 2.0 Ma), particularly among the Carnivora where 31 of 34 species (92%) known from MN 13 are extinct by MN 14. This event affected all carnivore families and led to marked changes in guild structure. In MN 13 and earlier hyaenas had occupied niches for cursorial and semi-cursorial medium-sized scavengers. These species were replaced by canids, which had migrated to Eurasia from North America towards the end of the Miocene. Conical toothed cats, rare in the late Miocene, became more common from MN 14 onwards. The reason for these changes is not well understood, but they occur against a backdrop of continuous change in the physical environment that must have impinged on mammalian evolution in general. A major impediment to better understanding is the relative dearth of MN 14 faunas in western Europe, but the results of continuing studies of Mio-Pliocene mammalian faunas in China may help to address this problem.

  • 128.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Wesley-Hunt, Gina D.
    Carnivoran ecomorphology: patterns below the family level2014Inngår i: Annales Zoologici Fennici, ISSN 0003-455X, E-ISSN 1797-2450, Vol. 51, s. 259-268Artikkel i tidsskrift (Fagfellevurdert)
  • 129.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Wesley-Hunt, Gina D.
    The biogeography of carnivore ecomorphology2010Inngår i: Carnivoran Evolution: New Views on Phylogeny, Form, and Function / [ed] Goswami, A. & Friscia, A., Cambridge: Cambridge University Press, 2010, s. 225-245Kapittel i bok, del av antologi (Fagfellevurdert)
  • 130.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Yamaguchi, Nobuyuki
    Driscoll, C. A.
    Abramov, A.
    Csorba, G.
    Cuisin, J.
    Fernholm, Bo
    Naturhistoriska riksmuseet, Enheten för zoologi.
    Hiermeier, M.
    Hills, D.
    Hunter, L.
    Itakura, H.
    Johansson, Ulf
    Naturhistoriska riksmuseet, Enheten för zoologi.
    Kascheev, V.
    Krohmann, K.
    Martin, T.
    Nowak-Kemp, M.
    Pavlinov, I.
    Renoud, F.
    Tomsett, L.
    van der Mije, S.
    Zholnerovskaya, E.
    Groves, Colin
    Kitchener, Andrew C.
    Nijman, V.
    Macdonald, David W.
    Locating specimens of extinct tiger (Panthera tigris) subspecies: Caspian tiger (P. t. virgata), Javan tiger (P. t. sondaica), and Balinese tiger (P. t. balica) – including previously unpublished specimens2013Inngår i: Mammal Study, ISSN 1343-4152, E-ISSN 1348-6160, Vol. 38, s. 187-198Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Recent advances in multivariate statistics, and in ancient DNA techniques, have greatly increased understanding of tiger phylogeography. However, regardless of advances in analytical methodology, researchers will continue to need access to specimens for morphological measurements and sampling for genetic analysis. The tiger has become increasingly endangered, and out of the nine putative tiger subspecies, three (Javan, Balinese, and Caspian) have become extinct in the last 100 years, leaving the specimens kept in natural history collections as the only materials available for research. Frustratingly little information is widely available concerning the specimens of these extinct tiger subspecies. We conducted an extensive search for specimens of extinct tiger subspecies, and also developed a simple on-site method to assign unprovenanced and probable Indonesian specimens to either Javan/Balinese or Sumatran subspecies. We located a total of 88 Javan, 11 Balinese, and 46 Caspian tigers, including seven new Javan tigers, and three Balinese tigers that were not widely known previously. These specimens are critical for research in order to understand the intraspecific phylogeny and evolutionary history of the tiger.

  • 131.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Yamaguchi, Nobuyuki
    Johnson, Warren E.
    O'Brien, Stephen J.
    Phylogeny and evolution of cats (Felidae)2010Inngår i: The Biology and Conservation of Wild Felids / [ed] Macdonald, D. M. & Loveridge, A., Oxford: Oxford University Press, 2010, s. 59-82Kapittel i bok, del av antologi (Fagfellevurdert)
  • 132. Wesley-Hunt, Gina D.
    et al.
    Dehghani, Reihaneh
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Comparative ecomorphology and biogeography of Herpestidae and Viverridae (Carnivora)2010Inngår i: Carnivoran Evolution: New Views on Phylogeny, Form, and Function / [ed] Goswami, A. & Friscia, A., Cambridge: Cambridge University Press, 2010, s. 246-268Kapittel i bok, del av antologi (Fagfellevurdert)
  • 133. Wesley-Hunt, Gina D.
    et al.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Basicranial morphology and phylogenetic position of the upper Eocene carnivoramorphan Quercygale.2005Inngår i: Acta Palaeontologica Polonica, ISSN 0567-7920, E-ISSN 1732-2421, Vol. 50, s. 837-846Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Quercygale angustidens is a small, early carnivoramorphan from the upper Eocene of northwest Europe including the Phosphorites du Quercy, France. Although there is extensive material of the genus, very little has been published on the auditory region which is an important character complex for taxonomy and phylogenetic studies. This paper presents a detailed description of the basicranium of an undistorted partial skull of Quercygale. The new data form the basis for a phylogenetic analysis of Quercygale in the context of basal carnivoramorphan interrelationships. Quercygale has a mix of derived and plesiomorphic characters. The promontorium is highly derived, and unlike that of any other “miacoid”. Yet, based on the evidence from surrounding bones the bulla does not appear to be as expanded as in other closely related miacids. In the phylogenetic analysis Quercygale is the sister−taxon to Nimravidae and crown−group Carnivora, and it appears to be the most derived of the stem−group Miacidae. We discuss the implications that the position of Quercygale has on carnivoramorphan phylogenetics.

  • 134. Yamaguchi, Nobuyuki
    et al.
    Cooper, Alan
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Macdonald, David W.
    Evolution of the mane and group-living in the lion (Panthera leo): a review2004Inngår i: Journal of Zoology, ISSN 0952-8369, E-ISSN 1469-7998, Vol. 263, s. 329-342Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The evolutionary history of the lion Panthera leo began in Pliocene east Africa, as open habitats expanded towards the end of the Cenozoic. During the middle–late Pleistocene, lions spread to most parts of Eurasia, North America, and may have eventually reached as far south as Peru. Lions probably evolved group-living behaviour before they expanded out of Africa, and this trait is likely to have prevailed in subsequent populations. The first lions were presumed to have been maneless, and maneless forms seem to have persisted in Europe, and possibly the New World, until around 10 000 years ago. The maned form may have appeared c. 320 000–190 000 years ago, and may have had a selective advantage that enabled it to expand to replace the range of earlier maneless forms throughout Africa and western Eurasia by historic times: ‘latest wave hypothesis’.

  • 135. Zachrisson, Inger
    et al.
    Werdelin, LarsNaturhistoriska riksmuseet, Enheten för paleobiologi.
    Gravfält i Fångstmarken1984Collection/Antologi (Annet vitenskapelig)
  • 136. Zhang, Z.
    et al.
    Gentry, A. W.
    Kakkinen, A.
    Liu, L.
    Lunkka, J.-P.
    Qiu, Z.
    Sen, S.
    Scott, R. S.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Zheng, S.
    Fortelius, M.
    Land mammal faunal sequence of the late Miocene of China: New evidence from Lantian, Shaanxi Province2002Inngår i: Vertebrata PalAsiatica, Vol. 40, s. 165-176Artikkel i tidsskrift (Fagfellevurdert)
123 101 - 136 of 136
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