An Early Pliocene Hipparionine Horse from the Canadian Arctic
A partial skull of a juvenile hipparionine equid from Ellesmere Island, Canada, is the northernmost fossil record of a horse (78° 33′ N). Biostratigraphical analysis of the associated fossil biota suggests an age of 3.5 to 4 Ma (early Pliocene). Preserved facial characteristics of the equid include...
Published in: | Palaeontology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1999
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/1475-4983.00108 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1475-4983.00108 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1475-4983.00108 |
id |
crwiley:10.1111/1475-4983.00108 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/1475-4983.00108 2024-09-15T18:04:46+00:00 An Early Pliocene Hipparionine Horse from the Canadian Arctic Hulbert, Jr, Richard C. Harington, C. Richard 1999 http://dx.doi.org/10.1111/1475-4983.00108 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1475-4983.00108 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1475-4983.00108 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Palaeontology volume 42, issue 6, page 1017-1025 ISSN 0031-0239 1475-4983 journal-article 1999 crwiley https://doi.org/10.1111/1475-4983.00108 2024-08-06T04:14:41Z A partial skull of a juvenile hipparionine equid from Ellesmere Island, Canada, is the northernmost fossil record of a horse (78° 33′ N). Biostratigraphical analysis of the associated fossil biota suggests an age of 3.5 to 4 Ma (early Pliocene). Preserved facial characteristics of the equid include a very reduced preorbital fossa located posterior to the infraorbital foramen. The deciduous premolars have low crown heights, complex fossette plications, multiple pli caballins, and oval, isolated protocones. The teeth are quite large, corresponding to an adult with a tooth row length of c. 150 mm. This combination of facial and dental characteristics and large size is not observed in any contemporaneous North American hipparionine, but is instead found in some Asiatic hipparionines, most notably Plesiohipparion . If the resemblance is not a result of convergence, then this represents the first record of an Old World hipparionine dispersing to North America. Alternatively, the specimen may represent a hitherto unknown, high‐latitude hipparionine clade. Article in Journal/Newspaper Ellesmere Island Wiley Online Library Palaeontology 42 6 1017 1025 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A partial skull of a juvenile hipparionine equid from Ellesmere Island, Canada, is the northernmost fossil record of a horse (78° 33′ N). Biostratigraphical analysis of the associated fossil biota suggests an age of 3.5 to 4 Ma (early Pliocene). Preserved facial characteristics of the equid include a very reduced preorbital fossa located posterior to the infraorbital foramen. The deciduous premolars have low crown heights, complex fossette plications, multiple pli caballins, and oval, isolated protocones. The teeth are quite large, corresponding to an adult with a tooth row length of c. 150 mm. This combination of facial and dental characteristics and large size is not observed in any contemporaneous North American hipparionine, but is instead found in some Asiatic hipparionines, most notably Plesiohipparion . If the resemblance is not a result of convergence, then this represents the first record of an Old World hipparionine dispersing to North America. Alternatively, the specimen may represent a hitherto unknown, high‐latitude hipparionine clade. |
format |
Article in Journal/Newspaper |
author |
Hulbert, Jr, Richard C. Harington, C. Richard |
spellingShingle |
Hulbert, Jr, Richard C. Harington, C. Richard An Early Pliocene Hipparionine Horse from the Canadian Arctic |
author_facet |
Hulbert, Jr, Richard C. Harington, C. Richard |
author_sort |
Hulbert, Jr, Richard C. |
title |
An Early Pliocene Hipparionine Horse from the Canadian Arctic |
title_short |
An Early Pliocene Hipparionine Horse from the Canadian Arctic |
title_full |
An Early Pliocene Hipparionine Horse from the Canadian Arctic |
title_fullStr |
An Early Pliocene Hipparionine Horse from the Canadian Arctic |
title_full_unstemmed |
An Early Pliocene Hipparionine Horse from the Canadian Arctic |
title_sort |
early pliocene hipparionine horse from the canadian arctic |
publisher |
Wiley |
publishDate |
1999 |
url |
http://dx.doi.org/10.1111/1475-4983.00108 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1475-4983.00108 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1475-4983.00108 |
genre |
Ellesmere Island |
genre_facet |
Ellesmere Island |
op_source |
Palaeontology volume 42, issue 6, page 1017-1025 ISSN 0031-0239 1475-4983 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1475-4983.00108 |
container_title |
Palaeontology |
container_volume |
42 |
container_issue |
6 |
container_start_page |
1017 |
op_container_end_page |
1025 |
_version_ |
1810442385320050688 |