scholarly journals Late Pleistocene records of felids from Medicine Hat, Alberta, including the first Canadian record of the sabre-toothed cat Smilodon fatalis

2019 ◽  
Vol 56 (10) ◽  
pp. 1052-1060
Author(s):  
Ashley R. Reynolds ◽  
Kevin L. Seymour ◽  
David C. Evans
Keyword(s):  
North America ◽  
Late Pleistocene ◽  
Range Expansion ◽  
Global Distribution ◽  
Range Extension ◽  
Documented Case ◽  
South Saskatchewan River ◽  
First Occurrence ◽  
Herbivorous Mammals ◽  
Smilodon Fatalis

In the late 1960s, a team led by C.S. Churcher and A. MacS. Stalker collected over 1000 vertebrate fossils, mostly representing large herbivorous mammals, from bluffs along the South Saskatchewan River near Medicine Hat, Alberta, Canada. The records from this area also include the only documented case of the sabre-toothed cat Smilodon fatalis, but these specimens have not been described or illustrated, and therefore, their identification has never been verified. Here, all felid fossils recovered from the Medicine Hat bluffs are described and identified. We confirm the presence of the machairodontine S. fatalis and three additional taxa: the feline Lynx and the pantherines Panthera cf. P. atrox (American lion) and Panthera cf. P. spelaea (cave lion). Notably, this record of S. fatalis is its first confirmed occurrence in Canada and is a significant northerly range expansion, bringing the global distribution of this species in line with what is typical for a large felid. Should the tentative record of Panthera cf. P. spelaea be correct, this would represent its first occurrence in Alberta and a southeastern range extension, bringing it into the range of P. atrox. The possible presence of both P. atrox and P. spelaea suggests that Late Pleistocene pantherine biogeography in North America may be more complex than previously believed, particularly during relatively warm interglacial periods.

scholarly journals First Occurrence of the Grey Fox, Urocyon cinereoargenteus, in New Brunswick: a Climate-change Mediated Range Expansion?

2008 ◽  
Vol 122 (2) ◽  
pp. 169
Author(s):  
Donald McAlpine ◽  
James D. Martin ◽  
Cade Libby
Keyword(s):  
Climate Change ◽  
New Brunswick ◽  
Threatened Species ◽  
North American ◽  
Range Expansion ◽  
Range Extension ◽  
Urocyon Cinereoargenteus ◽  
Subadult Male ◽  
Warming Climate ◽  
First Occurrence

The first occurrence in New Brunswick of the Grey Fox (Urocyon cinereoargenteus), a threatened species in Canada, is documented based on a 4.3 kg subadult male trapped in the southwestern corner of the province. This is an approximate range extension of 135 km from the most northerly Maine occurrence and may reflect a larger North American range expansion underway since 1930-40, perhaps in response to warming climate.

scholarly journals Chronology of Range Expansion of the Coyote, Canis latrans, in New York

2005 ◽  
Vol 119 (1) ◽  
pp. 1 ◽  
Author(s):  
Heather M. Fener ◽  
Joshua R. Ginsberg ◽  
Eric W. Sanderson ◽  
Matthew E. Gompper
Keyword(s):  
New York ◽  
North America ◽  
Range Expansion ◽  
Canis Latrans ◽  
The State ◽  
Past Century ◽  
Proximate Mechanisms ◽  
The North ◽  
First Occurrence ◽  
Correlative Relationship

Coyotes (Canis latrans) were historically restricted to central North America. In less than two centuries, however, Coyotes have colonized most of the continent, including much of northeastern North America. Better understanding causes and proximate mechanisms of this expansion requires a detailed understanding of how Coyotes colonized areas on a fine scale. We examined the establishment of Coyotes in the State of New York by collecting and analyzing reports of their first occurrence throughout the state over the past century, and creating a detailed map of range expansion. Coyotes first entered New York from the north, circled the Adirondack region prior to colonizing it, and then expanded southward and westward at ca. 78-90 km/decade. The revealed pattern lends little support to the hypotheses that the range expansion is attributable to translocations and releases, or that Coyotes were historically present in the region and only recently expanded in numbers. Rather, the data suggest a correlative relationship between anthropogenic land use and Coyote range expansion.

Range extension and fossil occurrences of Holoboreaphilus nordenskioeldi (Mäklin) (Coleoptera: Staphylinidae) in North America

1984 ◽  
Vol 62 (3) ◽  
pp. 463-467 ◽  
Author(s):  
Alan V. Morgan ◽  
Anne Morgan ◽  
Randall F. Miller
Keyword(s):  
North America ◽  
Late Pleistocene ◽  
Range Extension ◽  
Hudson Bay ◽  
Western Shore ◽  
Northwestern North America

The staphylinid beetle Holoboreaphilus nordenskioeldi (Mäklin) has been recorded from both northeastern and northwestern North America. Two new collecting localities on the western shore of Hudson Bay are reported. The distribution of this species is discussed with reference to fossil occurrences in Late Pleistocene deposits in North America, and two possible postglacial recolonisation routes are postulated.

Climatic implications of latest Pleistocene and earliest Holocene mammalian sympatries in eastern Washington state, USA

2008 ◽  
Vol 70 (3) ◽  
pp. 426-432 ◽  
Author(s):  
R. Lee Lyman
Keyword(s):  
North America ◽  
Late Pleistocene ◽  
Rocky Mountains ◽  
Taxonomic Composition ◽  
Washington State ◽  
The West ◽  
Mammalian Faunas ◽  
Eastern Washington

AbstractFor more than fifty years it has been known that mammalian faunas of late-Pleistocene age are taxonomically unique and lack modern analogs. It has long been thought that nonanalog mammalian faunas are limited in North America to areas east of the Rocky Mountains and that late-Pleistocene mammalian faunas in the west were modern in taxonomic composition. A late-Pleistocene fauna from Marmes Rockshelter in southeastern Washington State has no modern analog and defines an area of maximum sympatry that indicates significantly cooler summers than are found in the area today. An earliest Holocene fauna from Marmes Rockshelter defines an area of maximum sympatry, including the site area, but contains a single tentatively identified taxon that may indicate slightly cooler than modern summers.

A Carved Stone from D'Arcy, Saskatchewan

1940 ◽  
Vol 5 (4) ◽  
pp. 334-335
Author(s):  
Vladimar Alfred Vigfusson
Keyword(s):  
North America ◽  
Late Pleistocene ◽  
Glacial Lake ◽  
Bering Strait ◽  
The North ◽  
Gravel Pit ◽  
North Bank ◽  
The Town

In recent years, the attention of some archaeologists has been directed to the Canadian Northwest with the expectation of finding some evidence or indication of the early migrations of man on this continent. That man reached North America by Bering Strait from Asia, is generally accepted, but the theory that the migrations took place in late Pleistocene times and by way of an open corridor between the Keewatin ice and the Rockies, requires confirmation. It is significant that Folsom and Yuma points from Saskatchewan, described by E. B. Howard, were found mainly in areas bordering the ancient glacial Lake Regina.As a further contribution to this problem, it seems desirable to present a brief description of a carved stone relic found in gravel in central Saskatchewan about three years ago.The stone was found about seven miles southeast of the town of D'Arcy in a gravel pit located on Sec. 9, Tp. 28, Rge. 18, W. 3rd Meridian, on the north bank of a ravine running east into Bad Lake.

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