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  • 1. Adrian, Brent
    et al.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Grossman, Aryeh
    New Miocene Carnivora (Mammalia) from Moruorot and Kalodirr, Kenya2018Ingår i: Palaeontologia Electronica, ISSN 1935-3952, E-ISSN 1094-8074, Vol. 21Artikel i tidskrift (Refereegranskat)
    Abstract [en]

     We describe new carnivoran fossils from Kalodirr and Moruorot, two late Early

    Miocene sites in the Lothidok Formation of West Turkana, Kenya. The fossils include a

    new species of viverrid, Kichechia savagei  sp. nov., a new genus and species of felid,

    Katifelis nightingalei  gen. et sp. nov., and an unidentified musteloid. We also report

    new records of the amphicyonid Cynelos macrodon. These new fossils increase the

    known diversity of African Early Miocene carnivorans and highlight regional differences

    in Africa.

  • 2.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    McDonald, H. Gregory
    Shaw, Christopher A.
    Smilodon: The Iconic Sabertooth2018Bok (Refereegranskat)
  • 3. Villavicencio, Natalia
    et al.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    The Casa del Diablo cave (Puno, Peru) and the late Pleistocene demise of megafauna in the Andean Altiplano2018Ingår i: Quaternary Science Reviews, ISSN 0277-3791, E-ISSN 1873-457X, Vol. 195, s. 21-31Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    During the Late Quaternary Extinction event South America lost ~83% of all its late Pleistocene megafaunal genera. As in other regions of the world, the debate about the possible drivers behind these extinctions revolves around the role of humans arriving into the continent and on the effect of the climatic changes characteristic of the Pleistocene-Holocene transition. The availability of precise chronological information, in order to estimate the timing of extinction of the different taxa affected, is critical for solving such debate. Here we present an updated study of the late Pleistocene mammalian deposits from Casa del Diablo Cave (CdD) in the Altiplano of Peru. The study includes an updated list of the mammalian faunas found in the cave and 11 taxon-specific XAD radiocarbon dates from extinct and extant megafauna bones.We compare this new chronology to the timing of major environmental changes and human arrival in the area, as well as with other megafaunal discoveries from the high Andes. The radiocarbon dates from CdD fall in the time window between 23 and 12.8 cal kyr BP. Compared to other records of extinct megafauna in the high Andes, the one from CdD presents in general younger occurrences. No temporal overlap between humans and extinct megafauna emerges from comparing first dates of appearance of humans in the Altiplano, and last appearance dates of extinct megafauna from CdD. However, the possibility of temporal overlap among the records becomes evident when we compare confidence intervals calculated to estimate true times of human arrival and megafaunal local extinctions.

  • 4.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Flink, Therese
    The phylogenetic context of Smilodon2018Ingår i: Smilodon: The Iconic Sabertooth / [ed] Werdelin, L., McDonald, H.G., Shaw, C.A., Baltimore: Johns Hopkins University Press, 2018Kapitel i bok, del av antologi (Refereegranskat)
  • 5. McDonald, H. Gregory
    et al.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    The sabertooth cat, Smilodon populator (Carnivora: Felidae), from Cueva de Milodón, Chile2018Ingår i: Smilodon: The Iconic Sabertooth / [ed] Werdelin, L., McDonald, H.G., Shaw, C.A., Baltimore: Johns Hopkins University Press, 2018Kapitel i bok, del av antologi (Refereegranskat)
  • 6.
    Werdelin, Lars
    et al.
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Lewis, Margaret E.
    A contextual review of the Carnivora of Kanapoi2017Ingår i: Journal of Human Evolution, ISSN 0047-2484, E-ISSN 1095-8606Artikel i tidskrift (Refereegranskat)
    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.

  • 7. Kitchener, A.C.
    et al.
    Breitenmoser-Würsten, C.
    Eizirik, E.
    Gentry, A.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Wilting, A.
    Yamaguchi, N.
    A revised taxonomy of the Felidae: The final report of the Cat Classification Task Force of the IUCN Cat Specialist Group2017Ingår i: Cat News, ISSN 1027-2992Artikel, forskningsöversikt (Övrigt vetenskapligt)
    Abstract [en]

     1. The current classification of the Felidae was reviewed by a panel of 22 experts divided into core, expert and review groups, which make up the Cat Classification Task Force CCTF of the IUCN Cat Specialist Group.

    2. The principal aim of the CCTF was to produce a consensus on a revised classification of the Felidae for use by the IUCN.

    3. Based on current published research, the CCTF has fully revised the classification of the Felidae at the level of genus, species and subspecies.

    4. A novel traffic-light system was developed to indicate certainty of each taxon based on morphological, molecular, biogeographical and other evidence. A concordance of good evidence in the three principal categories was required to strongly support the acceptance of a taxon.

    5. Where disagreements exist among members of the CCTF, these have been highlighted in the accounts for each species. Only further research will be able to answer the potential conflicts in existing data.

    6. A total of 14 genera, 41 species and 80 subspecies are recognised by most members of the CCTF, which is a considerable change from the classification proposed by Wozencraft (2005), the last major revision of the Felidae.

    7. Future areas of taxonomic research have been highlighted in order to answer current areas of uncertainty.

    8. This classification of the Felidae will be reviewed every five years unless a major new piece of research requires a more rapid revision for the conservation benefit of felid species at risk of extinction.

  • 8. Manthi, Fredrick Kyalo
    et al.
    Brown, Francis H.
    Plavcan, Michael J.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Gigantic lion, Panthera leo, from the Pleistocene of Natodomeri, eastern Africa2017Ingår i: Journal of Paleontology, ISSN 0022-3360, E-ISSN 1937-2337Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The partial skull of a lion from Natodomeri, northwest Kenya is described. The Natodomeri sites are correlated with Member I of the Kibish Formation, dated to between 195 ka and ca. 205 ka. The skull is remarkable for its very great size, equivalent to the largest cave lions (Panthera spelaea  [Goldfuss, 1810]) of Pleistocene Eurasia and much larger than any previously known lion from Africa, living or fossil. We hypothesize that this individual represents a previously unknown population or subspecies of lion present in the late Middle and Late Pleistocene of eastern Africa rather than being an indication of climate-driven size increase in lions of that time. This raises questions regarding the extent of our understanding of the pattern and causes of lion evolution in the Late Pleistocene.

  • 9. Bibi, Faysal
    et al.
    Pante, Michael
    Souron, Antoine
    Stewart, Kathlyn
    Varela, Sara
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Boisserie, Jean-Renaud
    Fortelius, Mikael
    Hlusko, Leslea
    Njau, Jackson
    de la Torre, Ignacio
    Paleoecology of the Serengeti during the Oldowan-Acheulean transition at Olduvai Gorge, Tanzania: The mammal and fish evidence2017Ingår i: Journal of Human Evolution, ISSN 0047-2484, E-ISSN 1095-8606Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Eight years of excavation work by the Olduvai Geochronology and Archaeology Project (OGAP) has produced a rich vertebrate fauna from several sites within Bed II, Olduvai Gorge, Tanzania. Study of these as well as recently re-organized collections from Mary Leakey's 1972 HWK EE excavations here provides a synthetic view of the faunal community of Olduvai during Middle Bed II at ~1.7e1.4 Ma, an interval that captures the local transition from Oldowan to Acheulean technology. We expand the faunal list for this interval, name a new bovid species, clarify the evolution of several mammalian lineages, and record new local first and last appearances. Compositions of the fish and large mammal assemblages support previous indications for the dominance of open and seasonal grassland habitats at the margins of an alkaline lake. Fish diversity is low and dominated by cichlids, which indicates strongly saline conditions. The taphonomy of the fish assemblages supports reconstructions of fluctuating lake levels with mass die-offs in evaporating pools. The mammals are dominated by grazing bovids and equids. Habitats remained consistently dry and open throughout the entire Bed II sequence, with no major turnover or paleoecological changes taking place. Rather, wooded and wet habitats had already given way to drier and more open habitats by the top of Bed I, at 1.85e1.80 Ma. This ecological change is close to the age of the Oldowan-Acheulean transition in Kenya and Ethiopia, but precedes the local transition in Middle Bed II. The Middle Bed II largemammal community is much richer in species and includes a much larger number of large-bodied species (>300 kg) than the modern Serengeti. This reflects the severity of Pleistocene extinctions on African large mammals, with the loss of large species fitting a pattern typical of defaunation or ‘downsizing’ by human disturbance. However, trophic network (food web) analyses show that the Middle Bed II communitywas robust, and comparisons with the Serengeti community indicate that the fundamental structure of foodwebs remained intact despite Pleistocene extinctions. The presence of a generalized meateating hominin in the Middle Bed II community would have increased competition among carnivores and vulnerability among herbivores, but the high generality and interconnectedness of the Middle Bed II food web suggests this community was buffered against extinctions caused by trophic interactions.

  • 10. Viranta, Suvi
    et al.
    Atickem, Anagaw
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Stenseth, Nils Christian
    Rediscovering a forgotten canid species2017Ingår i: BMC Zoology, ISSN 2056-3132Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background

    The African wolf, for which we herein recognise Canis lupaster Hemprich and Ehrenberg, 1832 (Symbolae Physicae quae ex Itinere Africam Borealem er Asoam Occidentalem Decas Secunda. Berlin, 1833) as the valid species name (we consider the older name Canis anthus Cuvier, 1820 [Le Chacal de Sénégal, Femelle. In: Geoffroy St.-Hilaire E, Cuvier F, editors. Histoire Naturelle des Mammifères Paris, A. Belin, 1820] a nomen dubium), is a medium-sized canid with wolf-like characters. Because of phenotypic similarity, specimens of African wolf have long been assigned to golden jackal (Canis aureus Linnaeus, 1758 [Systema Naturae per Regna Tria Naturae, Secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Tomus I. Editio decima, reformata, 1758]).

    Results

    Here we provide, through rigorous morphological analysis, a species description for this taxonomically overlooked species. Through molecular sequencing we assess its distribution in Africa, which remains uncertain due to confusion regarding possible co-occurrence with the Eurasian golden jackal. Canis lupasterdiffers from all other Canis spp. including the golden jackal in its cranial morphology, while phylogenetically it shows close affinity to the Holarctic grey wolf (Canis lupus Linnaeus, 1758 [Systema Naturae per Regna Tria Naturae, Secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Tomus I. Editio decima, reformata, 1758]). All sequences generated during this study clustered with African wolf specimens, consistent with previous data for the species.

    Conclusions

    We suggest that the estimated current geographic range of golden jackal in Africa represents the African wolf range. Further research is needed in eastern Egypt, where a hybrid zone between Eurasian golden jackal and African wolf may exist. Our results highlight the need for improved studies of geographic range and population surveys for the taxon, which is classified as ‘least concern’ by the IUCN due to its erroneous identification as golden jackal. As a species exclusively distributed in Africa, investigations of the biology and threats to African wolf are needed.

  • 11. Vinuesa, Victor
    et al.
    Madurell-Malapeira, Joan
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Robles, Josep M.
    Obradó, Paul
    Alba, David M.
    A New Skull of Hyaenictis Gaudry, 1861 (Carnivora, Hyaenidae) Shows Incipient Adaptations to Durophagy2016Ingår i: Journal of mammalian evolution, ISSN 1064-7554, E-ISSN 1573-7055Artikel i tidskrift (Refereegranskat)
  • 12. Fortelius, Mikael
    et al.
    Žliobaitė, Indre
    Kaya, Ferhat
    Bibi, Faysal
    Bobe, René
    Leakey, Louise
    Leakey, Meave
    Patterson, David
    Rannikko, Janina
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    An ecometric analysis of the fossil mammal record of the Turkana Basin2016Ingår i: Philosophical Transactions of the Royal Society of London. Biological Sciences, ISSN 0962-8436, E-ISSN 1471-2970, Vol. 371, artikel-id 20150232Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Although ecometric methods have been used to analyse fossil mammal faunas and environments of Eurasia and North America, such methods have not yet been applied to the rich fossil mammal record of eastern Africa. Here we report results from analysis of a combined dataset spanning east and west Turkana from Kenya between 7 and 1 million years ago (Ma). We provide temporally and spatially resolved estimates of temperature and precipitation and discuss their relationship to patterns of faunal change, and propose a new hypothesis to explain the lack of a temperature trend. We suggest that the regionally arid Turkana Basin may between 4 and 2 Ma have acted as a ‘species factory’, generating ecological adaptations in advance of the global trend. We show a persistent difference between the eastern and western sides of the Turkana Basin and suggest that the wetlands of the shallow eastern side could have provided additional humidity to the terrestrial ecosystems. Pending further research, a transient episode of faunal change centred at the time of the KBS Member (1.87–1.53 Ma), may be equally plausibly attributed to climate change or to a top-down ecological cascade initiated by the entry of technologically sophisticated humans.

  • 13. Kuhn, Brian F.
    et al.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Steininger, Christine
    Fossil Hyaenidae from Cooper’s Cave South Africa, and the palaeoenvironmental implications2016Ingår i: Palaeobiodiversity and Palaeoenvironments, ISSN 1867-1594, E-ISSN 1867-1608Artikel i tidskrift (Refereegranskat)
  • 14.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Människans evolution2016Ingår i: Fauna och flora : populär tidskrift för biologi, ISSN 0014-8903, Vol. 111, s. 2-10Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
  • 15.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Review of The White River Badlands: Geology and Paleontology by Rachel C. Benton, Dennis O. Terry, Jr., Emmett Evanoff, and H. Gregory McDonald2016Ingår i: Journal of Vertebrate Paleontology, ISSN 0272-4634, E-ISSN 1937-2809, artikel-id e1158720Artikel, recension (Övrigt vetenskapligt)
  • 16. Kuhn, Brian F.
    et al.
    Hartstone-Rose, Adam
    Lacruz, Rodrigo S.
    Herries, Andrew I. R.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Bamford, Marion K.
    Berger, Lee R.,
    The carnivore guild circa 1.98 million years: biodiversity and implications for the palaeoenvironment at Malapa, South Africa2016Ingår i: Palaeobiodiversity and Palaeoenvironments, ISSN 1867-1594, E-ISSN 1867-1608Artikel i tidskrift (Refereegranskat)
  • 17. Faurby, Søren
    et al.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Svenning, Jens-Christian
    The difference between trivial and scientific names: There were never any true cheetahs in North America2016Ingår i: Genome Biology, ISSN 1465-6906, E-ISSN 1474-760XArtikel i tidskrift (Övrigt vetenskapligt)
  • 18.
    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, Ethiopia2015Ingår i: Papers in PalaeontologyArtikel i tidskrift (Refereegranskat)
  • 19. Meachen, Julie
    et al.
    Dunn, Rachel
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Carnivoran postcranial adaptations and their relationships to climate2015Ingår i: EcographyArtikel i tidskrift (Refereegranskat)
  • 20. DiMaggio, Erin N.
    et al.
    Campisano, Christopher J.
    Rowan, John
    Dupont-Nivet, Guillaume
    Deino, Alan L.
    Bibi, Faysal
    Lewis, Margaret
    Souron, Antoine
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Reed, Kaye E.
    Arrowsmith, J. Ramon
    Late Pliocene Fossiliferous Sedimentary Record and the Environmental Context of early Homo from Afar, Ethiopia2015Ingår i: Science, Vol. 347, s. 1355-1359Artikel i tidskrift (Refereegranskat)