A woolly mammoth (Proboscidea, Mammuthus primigenius) molar from the Hudson Bay Lowland of Manitoba

1988 ◽  
Vol 25 (6) ◽  
pp. 933-938 ◽  
Author(s):  
Erik Nielsen ◽  
C. S. Churcher ◽  
G. E. Lammers
Keyword(s):  
Depositional Environment ◽  
River Sediments ◽  
Hudson Bay ◽  
Tree Line ◽  
Mammuthus Primigenius ◽  
Early Form ◽  
Enamel Thickness ◽  
Hudson Bay Lowland ◽  
Woolly Mammoth

The first fossil mammal from the Hudson Bay Lowland of Manitoba, a molar from the woolly or Siberian mammoth, Mammuthus primigenius, is described from near Bird. A lophar index of 9.0 and an enamel thickness of 1.5–2.3 mm allow the tooth to be assigned to an early form of the species. Although in situ provenance of the molar is unknown, it is likely that the molar derives from Early Wisconsinan or Sangamon sediments that outcrop in the area. A boreal steppe or steppe–tundra environment is indicated by the presence of woolly mammoth, supporting a depositional environment north of the then tree line previously established for the Nelson River sediments.

Evidence from thermoluminescence dating for Middle Wisconsinan deglaciation in the Hudson Bay Lowland of Manitoba

1991 ◽  
Vol 28 (2) ◽  
pp. 240-249 ◽  
Author(s):  
Glenn W. Berger ◽  
E. Nielsen
Keyword(s):  
River Sediments ◽  
Ice Sheet ◽  
Laurentide Ice Sheet ◽  
Hudson Bay ◽  
Climatic Warming ◽  
Sediment Dating ◽  
Thermoluminescence Dating ◽  
Hudson Bay Lowland ◽  
Age Estimates

We report here the first direct dating of the nonglacial, intertill Nelson River sediments from five sites in northern Manitoba. We used the thermoluminescence (TL) sediment-dating technique to obtain age estimates of 32–46 ka for four samples and 119 ka for the fifth, all samples previously correlated to the Sangamonian Stage (80–130 ka) Missinaibi Formation. We interpret the younger TL dates as being within 20–40% of the true deposition ages, but interpret the oldest TL date as an overestimate because of ineffective zeroing of the light-sensitive TL associated with observed pebble and sand detritus in that sample. Thus these younger direct dates imply a significant climatic warming and deglaciation in the heart of the Laurentide Ice Sheet area during Middle Wisconsinan time.

MACROFOSSIL AND BIOMARKER RECORD FROM HUDSON BAY LOWLAND SOUTH RIDGE HOLLOW BOG, NORTHEAST ONTARIO

2016 ◽  
Author(s):  
Rebecca Snyder ◽  
◽  
Dorothy Peteet ◽  
Jonathan Nichols ◽  
Sarah Finkelstein ◽  
...  
Keyword(s):  
Hudson Bay ◽  
Hudson Bay Lowland

A tooth of Mammuthus primigenius from Chestermere Lake near Calgary, Alberta, and the distribution of mammoths in southwestern Canada

1978 ◽  
Vol 15 (8) ◽  
pp. 1272-1283 ◽  
Author(s):  
C. R. Harington ◽  
D. M. Shackleton
Keyword(s):  
British Columbia ◽  
North American ◽  
Mammuthus Primigenius ◽  
Canadian Provinces ◽  
Woolly Mammoth

A well-preserved molar of a woolly mammoth (Mammuthus primigenius) was recovered from deposits at Chestermere Lake near Calgary. It is probably of late Wisconsin age, and is one of several mammoth fossils collected from Pleistocene sediments in the Calgary area.The Chestermere Lake specimen is considered in relation to 94 records of mammoth cheek teeth from the western Canadian provinces. Of the 94 records, 5 are from Manitoba, 35 are from Saskatchewan, 37 are from Alberta, and 17 are from British Columbia. In addition to specimens of woolly mammoths, remains of Columbian (Mammuthus columbi), imperial (Mammuthus imperator), and southern mammoths (Mammuthus meridionalis) have been collected from Pleistocene deposits of southwestern Canada. Some problems concerning the relationships of North American and Eurasian mammoths are mentioned.

A mammoth (Mammuthus primigenius) tooth from late Wisconsin deposits near Embden, North Dakota, and comments on the distribution of woolly mammoths south of the Wisconsin ice sheets

1986 ◽  
Vol 23 (7) ◽  
pp. 909-918 ◽  
Author(s):  
C. R. Harington ◽  
Allan C. Ashworth
Keyword(s):  
British Columbia ◽  
Continental Shelf ◽  
North Dakota ◽  
Third Molar ◽  
Ice Sheets ◽  
Lake Agassiz ◽  
Mammuthus Primigenius ◽  
Sand And Gravel ◽  
Woolly Mammoth ◽  
Cass County

A well-preserved third molar of a woolly mammoth (Mammuthus primigenius) was recovered from sand and gravel forming the highest (Herman) prominent strandline of Lake Agassiz near Embden in western Cass County, North Dakota. The Herman strandline is estimated to have formed about 11 500 years BP, and presumably the tooth is of similar age. Perhaps the animal lived in a tundra-like area near the Lake Agassiz shoreline.Additional evidence suggests that woolly mammoths occupied a tundra-like range south of the Wisconsin ice sheets extending from southern British Columbia to the Atlantic continental shelf off Virginia.

AMS 14C chronology of the world's southernmost woolly mammoth (Mammuthus primigenius Blum.)

2007 ◽  
Vol 26 (7-8) ◽  
pp. 954-957 ◽  
Author(s):  
Keiichi Takahashi ◽  
Guangbiao Wei ◽  
Hikaru Uno ◽  
Minoru Yoneda ◽  
Changzhu Jin ◽  
...  
Keyword(s):  
Mammuthus Primigenius ◽  
Woolly Mammoth

A grizzly bear from the Middle Wisconsin of Woodbridge, Ontario

1976 ◽  
Vol 13 (2) ◽  
pp. 341-347 ◽  
Author(s):  
Charles S. Churcher ◽  
Alan V. Morgan
Keyword(s):  
Ursus Arctos ◽  
Grizzly Bears ◽  
Grizzly Bear ◽  
Bone Fragment ◽  
Mammuthus Primigenius ◽  
Ursus Arctos Horribilis ◽  
Before And After ◽  
Lake Simcoe ◽  
Left Humerus ◽  
Woolly Mammoth

The distal end of the left humerus of a grizzly bear, Ursus arctos, has been recovered from above the Early Wisconsin Sunnybrook Till at Woodbridge, Ontario, from the same horizon that previously has yielded remains of the woolly mammoth, Mammuthus primigenius. The age of these specimens is estimated at 40 000–50 000 years BP, within the mid-Wisconsin, Port Talbot Interstadial. The only other recognized Canadian record of a grizzly bear east of Manitoba is from a gravel sequence at Barrie, near Lake Simcoe, Ontario, dated from a bone fragment to 11 700 ± 250 years BP. A specimen recovered in Toronto in 1913 from an Early Wisconsin horizon is also considered to represent the grizzly. Bears of the grizzly type, Ursus arctos-horribilis were present in Ontario before and after the Early and Late Wisconsin ice advances.

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