The Neogene Savannas of North America : A Retrospective Analysis on Artiodactyl Faunas

Show simple item record Morales-Garcia, Nuria Melisa Saila, Laura K. Janis, Christine M. 2020-08-13T09:03:02Z 2020-08-13T09:03:02Z 2020-06-05
dc.identifier.citation Morales-Garcia , N M , Saila , L K & Janis , C M 2020 , ' The Neogene Savannas of North America : A Retrospective Analysis on Artiodactyl Faunas ' , Frontiers in Earth Science , vol. 8 , 191 .
dc.identifier.other PURE: 142258992
dc.identifier.other PURE UUID: d8d944c6-ae4d-474f-94c8-063fc4a2374e
dc.identifier.other WOS: 000546010600001
dc.description.abstract Savanna-like ecosystems were present at high latitudes in North America during much of the Neogene. Present-day African savannas, like the Serengeti, have been proposed to be modern analogs of these paleosavannas, particularly those from the middle Miocene of the Great Plains region of the United States. Both these extant and extinct savannas contain a preponderance of artiodactyl (even-toed ungulate) species; however, the taxonomic composition of each fauna is different. While present-day African savannas are dominated by ruminants (primarily bovids), the Neogene savannas of North America were dominated by a diversity of both camelid and non-bovid ruminant families. This study provides a quantitative test of the similarity of the artiodactyl faunas of the North American Neogene paleosavannas to those of the modern-day African savannas. A correspondence analysis of ecomorphological features revealed considerable overlap between modern and fossil faunas. The morphospace occupation of the extinct North American ruminants falls within that of the African bovids. Some of the extinct camelids also fall within this same morphospace, but many do not, perhaps indicating an environmental difference such as greater aridity in Neogene North America. The diversity and disparity of artiodactyl faunas through the Neogene of North America changed along with changing temperatures and precipitation regimes. The taxonomic and ecomorphological diversity of the Serengeti ruminant fauna is statistically comparable to those North American paleofaunas occurring during or immediately after the Middle Miocene Climatic Optimum (MMCO), but the later, more depauperate faunas are no longer comparable. This study quantitatively analyzes artiodactyl communities as they changed with the cooling and drying trend seen during the Neogene. en
dc.format.extent 24
dc.language.iso eng
dc.relation.ispartof Frontiers in Earth Science
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject ecomorphology
dc.subject paleoecology
dc.subject paleohabitat
dc.subject Neogene
dc.subject savanna ecosystems
dc.subject camelids
dc.subject ruminants
dc.subject GREAT-PLAINS
dc.subject NEW-WORLD
dc.subject SOUTH-AMERICA
dc.subject LATE MIOCENE
dc.subject BODY-SIZE
dc.subject EVOLUTION
dc.subject 1171 Geosciences
dc.title The Neogene Savannas of North America : A Retrospective Analysis on Artiodactyl Faunas en
dc.type Article
dc.contributor.organization Department of Geosciences and Geography
dc.description.reviewstatus Peer reviewed
dc.relation.issn 2296-6463
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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