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Rolf W. Mathewes
Simon Fraser University
OceanographyGeomorphologyGeologyHoloceneEcology
137Publications
42H-index
4,797Citations
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Publications 137
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#1Rolf W. Mathewes (SFU: Simon Fraser University)H-Index: 42
#2Terri Lacourse (UVic: University of Victoria)H-Index: 14
Last. Daryl W. Fedje (UVic: University of Victoria)H-Index: 18
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Kilgii Gwaay is an early Holocene archaeological wet site located in the intertidal zone of Ellen Island in the southern Haida Gwaii archipelago of coastal British Columbia, Canada. The Kilgii site includes one of the oldest shell middens in western North America and provides evidence of early maritime adaptations by humans. Radiocarbon-dated cultural deposits that surround a small palaeopond (Kilgii Pond) include hearth features, abundant lithic, bone and wood artifacts, and a diverse fossil fa...
1 CitationsSource
#1Gerald Mayr (AMNH: American Museum of Natural History)H-Index: 34
#2S. Bruce Archibald (SFU: Simon Fraser University)H-Index: 16
Last. Rolf W. Mathewes (SFU: Simon Fraser University)H-Index: 42
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We survey the known avian fossils from Ypresian (early Eocene) fossil sites of the North American Okanagan Highlands, mainly in British Columbia (Canada). All specimens represent taxa that were pre...
1 CitationsSource
#1Rolf W. Mathewes (SFU: Simon Fraser University)H-Index: 42
#2David R. Greenwood (Brandon University)H-Index: 29
Last. Renee Love (UIdaho: University of Idaho)
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Paleogene sediments of the Huntingdon Formation, a correlative to the Chuckanut Formation of neighboring Washington State, USA, are exposed in the greater Vancouver area, British Columbia, Canada. ...
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#1Rolf W. Mathewes (SFU: Simon Fraser University)H-Index: 42
#2Michael P. Richards (SFU: Simon Fraser University)H-Index: 8
Last. Thomas E. Reimchen (UVic: University of Victoria)H-Index: 34
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The basal portion of a fossil caribou antler from Graham Island is the only evidence of large terrestrial vertebrates older than the Fraser (late-Wisconsin) glaciation on Haida Gwaii. This antler h...
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#1S. B. Archibald (SFU: Simon Fraser University)H-Index: 2
Last. Rolf W. Mathewes (SFU: Simon Fraser University)H-Index: 42
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Most major modern families of Hymenoptera were established in the Mesozoic, but the diversifications within ecologically key trophic guilds and lineages that significantly influence the character of modern terrestrial ecosystems – bees (Apiformes), ants (Formicidae), social Vespidae, parasitoids (Ichneumonidae), and phytophagous Tenthredinoidea – were previously known to occur mostly in the middle to late Eocene. We find these changes earlier, seen here in the early Eocene Okanagan Highlands fos...
10 CitationsSource
#1Grant D. ZazulaH-Index: 30
#2Elizabeth HallH-Index: 4
Last. Beth Shapiro (UCSC: University of California, Santa Cruz)H-Index: 50
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© 2017 Canadian Science Publishing. All rights reserved. A partial skeleton of a bison was recovered during residential house construction in Whitehorse, Yukon, Canada. The specimen represents a young (estimated 6 year old) bison individual that died, was partially scavenged by carnivores, and subsequently buried by calcareous silt sediment in a pond or small lake during the middle Holocene, ~5400 years ago. Palaeoenvironmental data, including molluscs, pollen, vascular plant, and bryophyte macr...
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5 CitationsSource
#1Rolf W. MathewesH-Index: 42
#2Marlow G. PellattH-Index: 18
#1Rolf W. Mathewes (SFU: Simon Fraser University)H-Index: 42
#2David R. Greenwood (Brandon University)H-Index: 29
Last. S. Bruce Archibald (SFU: Simon Fraser University)H-Index: 16
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The Quilchena fossil locality is dated (51.5 ± 0.4 Ma) to the Early Eocene Climatic Optimum, and this locality is reconstructed as the warmest and wettest of the Early Eocene upland sites from the Okanagan Highlands of British Columbia and northern Washington State. Mean annual temperature (MAT) is estimated from leaf margin analysis, using 55 dicot morphotypes, as 16.2 ± 2.1 °C/14.6 ± 4.8 °C. Using bioclimatic analysis of 45 nearest living relatives, a moist mesothermal climate is indicated (MA...
12 CitationsSource
#1Rolf W. Mathewes (SFU: Simon Fraser University)H-Index: 42
#2Olav B. Lian (UFV: University of the Fraser Valley)H-Index: 24
Last. Matthew J.W. Huntley (SFU: Simon Fraser University)H-Index: 2
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Sea cliffs at Cape Ball on Graham Island, British Columbia, expose a thick sequence of Pleistocene sediments deposited during at least two glaciations. In sequence, from the base of the section, the units are (1) stony mud, (2) till, (3) silt, sand, and peat, (4) stony mud, (5) laminated sand and silt, (6) cross-bedded sand, and (7) till. Of special interest is unit 4, a massive to weakly stratified mud containing scattered stones that was deposited during the penultimate Pleistocene glaciation ...
9 CitationsSource
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