Cheek tooth morphology and ancient mitochondrial DNA of late Pleistocene horses from the western interior of North America: Implications for the taxonomy of North American Late Pleistocene Equus
Horses were a dominant component of North American Pleistocene land mammal communities and their remains are well represented in the fossil record. Despite the abundant material available for study, there is still considerable disagreement over the number of species of Equus that inhabited the diffe...
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ftunivcalgary:oai:prism.ucalgary.ca:1880/52206 2023-08-27T04:08:09+02:00 Cheek tooth morphology and ancient mitochondrial DNA of late Pleistocene horses from the western interior of North America: Implications for the taxonomy of North American Late Pleistocene Equus Barron-Ortiz, Christina I. Rodrigues, Antonia T. Theodor, Jessica M. Kooyman, Brian P. Yang, Dongya Y. Speller, Camilla F. 2017-08-17 application/pdf http://hdl.handle.net/1880/52206 https://doi.org/10.1371/journal.pone.0183045 https://doi.org/10.11575/PRISM/33336 en eng PLoS ONE Anthropology and Archaelogy Arts University of Calgary www.plos.org/plosone Barrón-Ortiz, C. I., Rodrigues, A. T., Theodor, J. M., Kooyman, B. P., Yang, D. Y., & Speller, C. F. (2017). Cheek tooth morphology and ancient mitochondrial DNA of late pleistocene horses from the western interior of north america: Implications for the taxonomy of north american late pleistocene equus. PLoS One, 12(8), e0183045. doi:10.1371/journal.pone.0183045 doi:10.1371/journal.pone.0183045 http://dx.doi.org/10.11575/PRISM/33336 http://hdl.handle.net/1880/52206 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ Teeth Dentition Pleistocene epoch Mitochondrial DNA Horses Morphometry Taxonomy Phylogenetic analysis journal article 2017 ftunivcalgary https://doi.org/10.1371/journal.pone.018304510.11575/PRISM/33336 2023-08-06T06:36:04Z Horses were a dominant component of North American Pleistocene land mammal communities and their remains are well represented in the fossil record. Despite the abundant material available for study, there is still considerable disagreement over the number of species of Equus that inhabited the different regions of the continent and on their taxonomic nomenclature. In this study, we investigated cheek tooth morphology and ancient mtDNA of late Pleistocene Equus specimens from the Western Interior of North America, with the objective of clarifying the species that lived in this region prior to the end-Pleistocene extinction. Based on the morphological and molecular data analyzed, a caballine (Equus ferus) and a non-caballine (E. conversidens) species were identified from different localities across most of the Western Interior. A second non-caballine species (E. cedralensis) was recognized from southern localities based exclusively on the morphological analyses of the cheek teeth. Notably the separation into caballine and non-caballine species was observed in the Bayesian phylogenetic analysis of ancient mtDNA as well as in the geometric morphometric analyses of the upper and lower premolars. Teeth morphologically identified as E. conversidens that yielded ancient mtDNA fall within the New World stilt-legged clade recognized in previous studies and this is the name we apply to this group. Geographic variation in morphology in the caballine species is indicated by statistically different occlusal enamel patterns in the specimens from Bluefish Caves, Yukon Territory, relative to the specimens from the other geographic regions. Whether this represents ecomorphological variation and/or a certain degree of geographic and genetic isolation of these Arctic populations requires further study. Yes Article in Journal/Newspaper Arctic Yukon PRISM - University of Calgary Digital Repository Arctic Yukon PLOS ONE 12 8 e0183045 |
institution |
Open Polar |
collection |
PRISM - University of Calgary Digital Repository |
op_collection_id |
ftunivcalgary |
language |
English |
topic |
Teeth Dentition Pleistocene epoch Mitochondrial DNA Horses Morphometry Taxonomy Phylogenetic analysis |
spellingShingle |
Teeth Dentition Pleistocene epoch Mitochondrial DNA Horses Morphometry Taxonomy Phylogenetic analysis Barron-Ortiz, Christina I. Rodrigues, Antonia T. Theodor, Jessica M. Kooyman, Brian P. Yang, Dongya Y. Speller, Camilla F. Cheek tooth morphology and ancient mitochondrial DNA of late Pleistocene horses from the western interior of North America: Implications for the taxonomy of North American Late Pleistocene Equus |
topic_facet |
Teeth Dentition Pleistocene epoch Mitochondrial DNA Horses Morphometry Taxonomy Phylogenetic analysis |
description |
Horses were a dominant component of North American Pleistocene land mammal communities and their remains are well represented in the fossil record. Despite the abundant material available for study, there is still considerable disagreement over the number of species of Equus that inhabited the different regions of the continent and on their taxonomic nomenclature. In this study, we investigated cheek tooth morphology and ancient mtDNA of late Pleistocene Equus specimens from the Western Interior of North America, with the objective of clarifying the species that lived in this region prior to the end-Pleistocene extinction. Based on the morphological and molecular data analyzed, a caballine (Equus ferus) and a non-caballine (E. conversidens) species were identified from different localities across most of the Western Interior. A second non-caballine species (E. cedralensis) was recognized from southern localities based exclusively on the morphological analyses of the cheek teeth. Notably the separation into caballine and non-caballine species was observed in the Bayesian phylogenetic analysis of ancient mtDNA as well as in the geometric morphometric analyses of the upper and lower premolars. Teeth morphologically identified as E. conversidens that yielded ancient mtDNA fall within the New World stilt-legged clade recognized in previous studies and this is the name we apply to this group. Geographic variation in morphology in the caballine species is indicated by statistically different occlusal enamel patterns in the specimens from Bluefish Caves, Yukon Territory, relative to the specimens from the other geographic regions. Whether this represents ecomorphological variation and/or a certain degree of geographic and genetic isolation of these Arctic populations requires further study. Yes |
format |
Article in Journal/Newspaper |
author |
Barron-Ortiz, Christina I. Rodrigues, Antonia T. Theodor, Jessica M. Kooyman, Brian P. Yang, Dongya Y. Speller, Camilla F. |
author_facet |
Barron-Ortiz, Christina I. Rodrigues, Antonia T. Theodor, Jessica M. Kooyman, Brian P. Yang, Dongya Y. Speller, Camilla F. |
author_sort |
Barron-Ortiz, Christina I. |
title |
Cheek tooth morphology and ancient mitochondrial DNA of late Pleistocene horses from the western interior of North America: Implications for the taxonomy of North American Late Pleistocene Equus |
title_short |
Cheek tooth morphology and ancient mitochondrial DNA of late Pleistocene horses from the western interior of North America: Implications for the taxonomy of North American Late Pleistocene Equus |
title_full |
Cheek tooth morphology and ancient mitochondrial DNA of late Pleistocene horses from the western interior of North America: Implications for the taxonomy of North American Late Pleistocene Equus |
title_fullStr |
Cheek tooth morphology and ancient mitochondrial DNA of late Pleistocene horses from the western interior of North America: Implications for the taxonomy of North American Late Pleistocene Equus |
title_full_unstemmed |
Cheek tooth morphology and ancient mitochondrial DNA of late Pleistocene horses from the western interior of North America: Implications for the taxonomy of North American Late Pleistocene Equus |
title_sort |
cheek tooth morphology and ancient mitochondrial dna of late pleistocene horses from the western interior of north america: implications for the taxonomy of north american late pleistocene equus |
publisher |
PLoS ONE |
publishDate |
2017 |
url |
http://hdl.handle.net/1880/52206 https://doi.org/10.1371/journal.pone.0183045 https://doi.org/10.11575/PRISM/33336 |
geographic |
Arctic Yukon |
geographic_facet |
Arctic Yukon |
genre |
Arctic Yukon |
genre_facet |
Arctic Yukon |
op_relation |
Barrón-Ortiz, C. I., Rodrigues, A. T., Theodor, J. M., Kooyman, B. P., Yang, D. Y., & Speller, C. F. (2017). Cheek tooth morphology and ancient mitochondrial DNA of late pleistocene horses from the western interior of north america: Implications for the taxonomy of north american late pleistocene equus. PLoS One, 12(8), e0183045. doi:10.1371/journal.pone.0183045 doi:10.1371/journal.pone.0183045 http://dx.doi.org/10.11575/PRISM/33336 http://hdl.handle.net/1880/52206 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/journal.pone.018304510.11575/PRISM/33336 |
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PLOS ONE |
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12 |
container_issue |
8 |
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e0183045 |
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1775348861355687936 |