Systematic position of Litomylus (?) alphamon Van Valen (Mammalia: Insectivora): further evidence for the Late Paleocene age of Swan Hills Site-1 in the Paskapoo Formation of Alberta
The Swan Hills are erosional remnants of a once-continuous plateau lying between the Athabaska River and Lesser Slave Lake in the north-central part of Alberta, western Canada. Fossils were first discovered in the Paskapoo Formation here in 1964 by L. S. Russell, who described a small mammalian faun...
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Language: | English |
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Cambridge University Press (CUP)
1986
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Online Access: | http://dx.doi.org/10.1017/s002233600002268x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002233600002268X |
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crcambridgeupr:10.1017/s002233600002268x 2024-03-03T08:46:20+00:00 Systematic position of Litomylus (?) alphamon Van Valen (Mammalia: Insectivora): further evidence for the Late Paleocene age of Swan Hills Site-1 in the Paskapoo Formation of Alberta Gingerich, Philip D. 1986 http://dx.doi.org/10.1017/s002233600002268x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002233600002268X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 60, issue 5, page 1135-1137 ISSN 0022-3360 1937-2337 Paleontology journal-article 1986 crcambridgeupr https://doi.org/10.1017/s002233600002268x 2024-02-08T08:45:16Z The Swan Hills are erosional remnants of a once-continuous plateau lying between the Athabaska River and Lesser Slave Lake in the north-central part of Alberta, western Canada. Fossils were first discovered in the Paskapoo Formation here in 1964 by L. S. Russell, who described a small mammalian fauna from Swan Hills Site-1 (Russell, 1967). Russell's collection from Site-1 was interpreted (correctly) as representing the Tiffanian Land-Mammal Age (Late Paleocene). Of particular interest, Russell (1967) described a new primate species of the plesiadapiform family Carpolestidae, “Carpolestes” cygneus , based on fragmentary remains from Site-1. This species was later transferred to Carpodaptes by Rose (1975). Judging from the evolutionary grade of Carpodaptes cygneus , Rose (1977) regarded Swan Hills Site-1 as early or early middle Tiffanian in age. Additional work on C. cygneus at other Canadian sites indicated that Site-1 might be early late Tiffanian in age (Krause, 1978). This distinction is important because Carpodaptes has a more detailed evolutionary record in Wyoming and Montana, and correct attribution of the name C. cygneus , originally based on three isolated teeth, to samples better known elsewhere necessarily requires precise correlation. The holotype and type sample of C. cygneus , by themselves, are too fragmentary and limited to characterize the species. Species of Carpodaptes are among the most common and useful fossils available for precise dating of sediments associated with Laramide tectonic deformation in the Western Interior. At 55° north latitude, Swan Hills Site-1 remains the most northerly locality in North America yielding Paleocene mammals. Article in Journal/Newspaper Lesser Slave lake Slave Lake Cambridge University Press Canada Valen ENVELOPE(7.422,7.422,62.695,62.695) Journal of Paleontology 60 5 1135 1137 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Paleontology |
spellingShingle |
Paleontology Gingerich, Philip D. Systematic position of Litomylus (?) alphamon Van Valen (Mammalia: Insectivora): further evidence for the Late Paleocene age of Swan Hills Site-1 in the Paskapoo Formation of Alberta |
topic_facet |
Paleontology |
description |
The Swan Hills are erosional remnants of a once-continuous plateau lying between the Athabaska River and Lesser Slave Lake in the north-central part of Alberta, western Canada. Fossils were first discovered in the Paskapoo Formation here in 1964 by L. S. Russell, who described a small mammalian fauna from Swan Hills Site-1 (Russell, 1967). Russell's collection from Site-1 was interpreted (correctly) as representing the Tiffanian Land-Mammal Age (Late Paleocene). Of particular interest, Russell (1967) described a new primate species of the plesiadapiform family Carpolestidae, “Carpolestes” cygneus , based on fragmentary remains from Site-1. This species was later transferred to Carpodaptes by Rose (1975). Judging from the evolutionary grade of Carpodaptes cygneus , Rose (1977) regarded Swan Hills Site-1 as early or early middle Tiffanian in age. Additional work on C. cygneus at other Canadian sites indicated that Site-1 might be early late Tiffanian in age (Krause, 1978). This distinction is important because Carpodaptes has a more detailed evolutionary record in Wyoming and Montana, and correct attribution of the name C. cygneus , originally based on three isolated teeth, to samples better known elsewhere necessarily requires precise correlation. The holotype and type sample of C. cygneus , by themselves, are too fragmentary and limited to characterize the species. Species of Carpodaptes are among the most common and useful fossils available for precise dating of sediments associated with Laramide tectonic deformation in the Western Interior. At 55° north latitude, Swan Hills Site-1 remains the most northerly locality in North America yielding Paleocene mammals. |
format |
Article in Journal/Newspaper |
author |
Gingerich, Philip D. |
author_facet |
Gingerich, Philip D. |
author_sort |
Gingerich, Philip D. |
title |
Systematic position of Litomylus (?) alphamon Van Valen (Mammalia: Insectivora): further evidence for the Late Paleocene age of Swan Hills Site-1 in the Paskapoo Formation of Alberta |
title_short |
Systematic position of Litomylus (?) alphamon Van Valen (Mammalia: Insectivora): further evidence for the Late Paleocene age of Swan Hills Site-1 in the Paskapoo Formation of Alberta |
title_full |
Systematic position of Litomylus (?) alphamon Van Valen (Mammalia: Insectivora): further evidence for the Late Paleocene age of Swan Hills Site-1 in the Paskapoo Formation of Alberta |
title_fullStr |
Systematic position of Litomylus (?) alphamon Van Valen (Mammalia: Insectivora): further evidence for the Late Paleocene age of Swan Hills Site-1 in the Paskapoo Formation of Alberta |
title_full_unstemmed |
Systematic position of Litomylus (?) alphamon Van Valen (Mammalia: Insectivora): further evidence for the Late Paleocene age of Swan Hills Site-1 in the Paskapoo Formation of Alberta |
title_sort |
systematic position of litomylus (?) alphamon van valen (mammalia: insectivora): further evidence for the late paleocene age of swan hills site-1 in the paskapoo formation of alberta |
publisher |
Cambridge University Press (CUP) |
publishDate |
1986 |
url |
http://dx.doi.org/10.1017/s002233600002268x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S002233600002268X |
long_lat |
ENVELOPE(7.422,7.422,62.695,62.695) |
geographic |
Canada Valen |
geographic_facet |
Canada Valen |
genre |
Lesser Slave lake Slave Lake |
genre_facet |
Lesser Slave lake Slave Lake |
op_source |
Journal of Paleontology volume 60, issue 5, page 1135-1137 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s002233600002268x |
container_title |
Journal of Paleontology |
container_volume |
60 |
container_issue |
5 |
container_start_page |
1135 |
op_container_end_page |
1137 |
_version_ |
1792502361799786496 |