
Published online:
22 March 2012
Published in print:
08 February 2004
Online ISBN:
9780520930858
Print ISBN:
9780520240827
Contents
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Materials and Methods Materials and Methods
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Sites and Chronology Sites and Chronology
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Materials Examined Materials Examined
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Analyses Analyses
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Systematic Paleontology Systematic Paleontology
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Class Mammalia Class Mammalia
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Family Sciuridae Family Sciuridae
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Subfamily Sciurinae Subfamily Sciurinae
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Tamiasciurus Hudsonicus Tamiasciurus Hudsonicus
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Referred Material Referred Material
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Identification and Discussion Identification and Discussion
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Tamias Cf. T. Minimus Bachman, 1839 Tamias Cf. T. Minimus Bachman, 1839
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Referred Material Referred Material
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Identification and Discussion Identification and Discussion
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Marmota Sp. (Audubon and Bachman), 1841 Marmota Sp. (Audubon and Bachman), 1841
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Referred Material Referred Material
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Identification and Discussion Identification and Discussion
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Genus Spermophilus Genus Spermophilus
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Subgenus Uncertain Subgenus Uncertain
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Spermophilus Sp. Possibly S. Meadensis Spermophilus Sp. Possibly S. Meadensis
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Referred Material Referred Material
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Identification and Discussion Identification and Discussion
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Subgenus Otospermophilus Brandt, 1844 Subgenus Otospermophilus Brandt, 1844
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Referred Material Referred Material
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Identification and Discussion Identification and Discussion
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Subgenus Callospermophilus Merriam, 1897 Subgenus Callospermophilus Merriam, 1897
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Referred Material Referred Material
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Identification and Discussion Identification and Discussion
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Subgenus Spermophilus Cuvier, 1825 Subgenus Spermophilus Cuvier, 1825
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Referred Material Referred Material
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Supraspecific Assignment Supraspecific Assignment
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Morphometric Variation and Specific Assignment Morphometric Variation and Specific Assignment
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Discussion Discussion
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Spermophilus (Spermophilus) Sp. Spermophilus (Spermophilus) Sp.
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Referred Material Referred Material
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Identification and Discussion Identification and Discussion
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Genus Cynomys Genus Cynomys
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Holotype Holotype
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Referred Material Referred Material
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Type Locality and Age Type Locality and Age
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Diagnosis Diagnosis
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Etymology Etymology
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Description Description
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Discussion Discussion
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’Cynomys Sp. ’Cynomys Sp.
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Referred Material Referred Material
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Identification and Discussion Identification and Discussion
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Subgenus Leucocrossuromys Hollister, 1916 Subgenus Leucocrossuromys Hollister, 1916
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Identification and Description Identification and Description
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Discussion Discussion
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Historical Implications Historical Implications
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Site Correlation and Biochronology Site Correlation and Biochronology
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Environmental Interpretation Environmental Interpretation
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Pleistocene Evolutionary History of Rocky Mountain Sciurids Pleistocene Evolutionary History of Rocky Mountain Sciurids
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Appendix 17.1. List of Specimens Examined for the Four Most Abundant Sciurids Studied Appendix 17.1. List of Specimens Examined for the Four Most Abundant Sciurids Studied
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Spermophilus lateralis Spermophilus lateralis
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Mark’s Sink Mark’s Sink
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Pit (Cm Catalogue Numbers) Pit (Cm Catalogue Numbers)
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Pit (UCMP Catalogue Numbers) Pit (UCMP Catalogue Numbers)
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Velvet Room (DMNH) Velvet Room (DMNH)
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Velvet Room (Cm) Velvet Room (Cm)
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Spermophilus cf. S. elegans Spermophilus cf. S. elegans
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Badger Room Badger Room
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Come-A-Long Room Come-A-Long Room
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Generator Dome Generator Dome
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Mark’s Sink Mark’s Sink
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Pit (CM Catalogue Numbers) Pit (CM Catalogue Numbers)
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Pit (UCMP Catalogue Numbers) Pit (UCMP Catalogue Numbers)
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Velvet Room (DMNH) Velvet Room (DMNH)
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?Cynomys andersoni ?Cynomys andersoni
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Badger Room Badger Room
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Fissure Fill A Fissure Fill A
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Generator Dome Generator Dome
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Mark’s Sink Mark’s Sink
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Pit (Cm Catalogue Numbers) Pit (Cm Catalogue Numbers)
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Pit (UCMP Catalogue Numbers) Pit (UCMP Catalogue Numbers)
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Cynomys cf. C. leucurus Cynomys cf. C. leucurus
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Mark’s Sink Mark’s Sink
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Pit (Cm Catalogue Numbers) Pit (Cm Catalogue Numbers)
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Pit (UCMP Catalogue Numbers) Pit (UCMP Catalogue Numbers)
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Will’s Hole Will’s Hole
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Velvet Room (DMNH) Velvet Room (DMNH)
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Acknowledgments Acknowledgments
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Chapter
SEVENTEEN Systematics and Faunal Dynamics of Fossil Squirrels from Porcupine Cave
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Pages
172–192
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Published:February 2004
Cite
Goodwin, H. Thomas, 'Systematics and Faunal Dynamics of Fossil Squirrels from Porcupine Cave', in Anthony Barnosky (ed.), Biodiversity Response to Climate Change in the Middle Pleistocene: The Porcupine Cave Fauna from Colorado (Oakland, CA , 2004; online edn, California Scholarship Online, 22 Mar. 2012), https://doi.org/10.1525/california/9780520240827.003.0017, accessed 6 May 2025.
Abstract
This chapter discusses the fossil specimens of squirrels from Porcupine Cave, characterizing the taxonomic diversity and patterns of variation of the sciurid assemblage from various sites in Porcupine Cave. It also explores the implications of the sciurid assemblage for biostratigraphic reconstructions, and discusses the temporal environmental variation and evolutionary history of the Rocky Mountain Sciuridae.
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