Grant D Zazula

Dados Biográficos

ID3606712
NOMEGrant D Zazula
PRENOMESGrant D
SOBRENOMEZazula
ASSINATURAZAZULA G D
AFILIAÇÕESYukon Department of Tourism and Culture
ORCID0000-0001-8436-1783
VERIFICADOSim
TOTAL DE OBRAS16
TOTAL DE CITAÇÕES8
TOTAL COMO AUTOR16
TOTAL COMO EDITOR0
PRIMEIRO ANO DE PUBLICAÇÃO2000
ANO MAIS RECENTE DE PUBLICAÇÃO2026
ÍNDICE H1

  • Latest Pleistocene (17,500–13,500 cal yr BP) Arctic ground squirrel (Sciuridae

    Open AccessScott L Cocker, Diana Tirlea et al.ARTICLEQuaternary Research2026

    This paper presents the palaeoecological analysis of five latest Pleistocene (17,500–13,500 cal yr BP) Arctic ground squirrel ( Urocitellus parryii ) middens from three sites in the Klondike goldfields of central Yukon Territory. Plant and invertebrate macrofossil records were represented by 24 and 20 taxa, respectively, providing a record of the local environment and the earliest known occurrences in Yukon Territory for several taxa (e.g., the r…

  • First Fossils of Hyenas (Chasmaporthetes, Hyaenidae, Carnivora) from North of the Arctic Circle

    Open AccessZ Jack Tseng, Grant Zazula et al.ARTICLEOpen Quaternary2019Referências: 17

    The northern region of Beringia is ecologically and biogeographically significant as a corridor for biotic dispersals between the Old and New Worlds. Large mammalian predators from Beringia are exceedingly rare in the fossil record, even though carnivore diversity in the past was much higher than it is in this region at present. Here we report the first fossils of cursorial hyenas, Chasmaporthetes, in Beringia and north of the Arctic Circle. Two …

  • A multidisciplinary study of a Late Pleistocene arctic ground squirrel ( Urocitellus parryii ) midden from Yukon, Canada

    Open AccessBram W Langeveld, Bram Langeveld et al.ARTICLEQuaternary Research2018

    Middens (nests and caches) of Late Pleistocene arctic ground squirrels ( Urocitellus parryii ) that are preserved in the permafrost of Beringia archive valuable paleoecological data. Arctic ground squirrels selectively include the plant material placed in middens. To account for this selectivity bias, we used a multi-proxy approach that includes ancient DNA (aDNA) and macro- and microfossil analyses. Here, we provide insight into Pleistocene vege…

  • Mitogenomics of the Extinct Cave Lion, Panthera spelaea (Goldfuss, 1810), Resolve its Position within the Panthera Cats

    Open AccessRoss Barnett, Marie Lisandra Zepeda Mendoza et al.ARTICLEOpen Quaternary2016Citada por: 8Referências: 55

    The extinct cave lion (Panthera spelaea) was an apex predator of the Pleistocene, and one of the largest felid species ever to exist. We report the first mitochondrial genome sequences for this species, derived from two Beringian specimens, one of which has been radiocarbon dated to 29,860 ± 210 14C a BP. Phylogenetic analysis confirms the placement of the cave lion as the sister taxon to populations of the modern lion (P. leo). Using newly recov…

  • Middle Pleistocene (MIS 7) to Holocene fossil insect assemblages from the Old Crow basin, northern Yukon, Canada

    Open AccessSvetlana Kuzmina, Duane G Froese et al.ARTICLEQuaternary International2014

  • Timing of advance and basal condition of the Laurentide Ice Sheet during the last glacial maximum in the Richardson Mountains, NWT

    Open AccessDenyse Lacelle, Bernard Lauriol et al.ARTICLEQuaternary Research2013

    This study presents new ages for the northwest section of the Laurentide Ice Sheet (LIS) glacial chronology from material recovered from two retrogressive thaw slumps exposed in the Richardson Mountains, Northwest Territories, Canada. One study site, located at the maximum glacial limit of the LIS in the Richardson Mountains, had calcite concretions recovered from aufeis buried by glacial till that were dated by U/Th disequilibrium to 18,500 cal …

  • Late Pleistocene paleoecology of arctic ground squirrel ( Urocitellus parryii ) caches and nests from Interior Alaska's mammoth steppe ecosystem, USA

    Open AccessBenjamin V Gaglioti, Brian M Barnes et al.ARTICLEQuaternary Research2011

    Botanical analyses of fossil and modern arctic ground squirrel ( Urocitellus parryii ) caches and nests have been used to reconstruct the past vegetation from some parts of Beringia, but such archives are understudied in Alaska. Five modern and four fossil samples from arctic ground squirrel caches and nests provide information on late Pleistocene vegetation in Eastern Beringia. Modern arctic ground squirrel caches from Alaska's arctic tundra wer…

  • Species-specific responses of Late Quaternary megafauna to climate and humans

    Open AccessEline D Lorenzen, David Nogués‐bravo et al.ARTICLENature2011

  • Evidence for Selective Caching by Arctic Ground Squirrels Living in Alpine Meadows in the Yukon

    Open AccessElizabeth A Gillis, Elizabeth A L Gillis et al.ARTICLEARCTIC2010

    Male arctic ground squirrels (Spermophilus parryii) rely on food they cached the previous year for the energy they need to compete for mates each spring. We collected cheek-pouch contents of arctic ground squirrels trapped during three summers (2000–02) as an indication of what squirrels cached. Among adults, both males and females carried material in their cheek pouches, but males did so more frequently than females (4.4% vs. 0.6% of captures). …

  • Heart of the Yukon

    Open AccessGrant Zazula, Grant D ZazulaARTICLEARCTIC2009

  • New Radiocarbon-Dated Vertebrate Fossils from Herschel Island

    Open AccessGrant D Zazula, P Gregory Hare et al.ARTICLEARCTIC2009

    Palaeontological research on Herschel Island, Yukon, has yielded a diverse collection of Quaternary marine and terrestrial vertebrate fossils. The terrestrial faunal remains, which have largely been collected as allochthonous beach debris at Pauline Cove, are dominated by Yukon horse (Equus sp.), with fewer specimens of steppe bison (Bison priscus), proboscideans (Mammuthus primigenius and a single Mammut americanum specimen), and other large and…

  • Full-glacial paleosols in perennially frozen loess sequences, Klondike goldfields, Yukon Territory, Canada

    Open AccessPaul Sanborn, Paul T Sanborn et al.ARTICLEQuaternary Research2006

    Perennially frozen loess deposits in the Klondike goldfields include paleosols formed in full-glacial environments, correlated by Alaskan distal tephra with Marine Isotope Stages (MIS) 2 and 4. Patterns of organic and inorganic carbon and clay distribution, microstructures, and profile morphologies indicate that soil formation occurred in a base-rich environment in which organic matter accreted predominantly as root detritus. At sites approximate…

  • Macrofossil and pollen evidence for full-glacial steppe within an ecological mosaic along the Bluefish River, eastern Beringia

    Open AccessGrant D Zazula, Charles E Schweger et al.ARTICLEQuaternary International2006

  • Paleoecology of Beringian “packrat” middens from central Yukon Territory, Canada

    Open AccessGrant D Zazula, Duane Froese et al.ARTICLEQuaternary Research2005

    Rodent middens from ice-rich loess deposits are important new paleoenvironmental archives for Eastern Beringia. Plant macrofossils recovered from three middens associated with Dawson tephra (ca. 24,000 14 C yr B.P.) at two sites in Yukon Territory include diverse graminoids, forbs, and mosses. These data suggest substantial local scale floristic and habitat diversity in valley settings, including steppe-tundra on well-drained soils, moist streams…

  • Can Palynology be used for Reconstructing the Evolutionary History of Maize Agriculture

    Grant D ZazulaARTICLENEXUS The Canadian Student…2000

    The lack of archaeological or macrobotanical evidence that directly links wild teosinte grass with early domesticated maize requires the exploration of alternative methodologies to document this evolutionary transition. The morphological characteristics and measurements for maize, teosinte and Tripsacum pollen are presented to determine if they display sufficient differentiation to be distinguished in fossil pollen records. Analysis of the data r…

  • The Pleistocene Peopling of Greater Australia

    Grant D ZazulaARTICLENEXUS The Canadian Student…2000

    The problem concerning the initial Pleistocene peopling of Australasia is reviewed in light of recent findings that suggest this settlement may be earlier than the conventional view of 35,000 to 40,000 BP. Methods including anthropogenically interpreted paleoecological changes and the application of luminescence dating techniques clearly suggest people settled this continent earlier than the applicable limits of conventional radiocarbon analysis.…