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Biodiversity Response to Climate Change in the Middle PleistoceneThe Porcupine Cave Fauna from Colorado$
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Anthony Barnosky

Print publication date: 2004

Print ISBN-13: 9780520240827

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520240827.001.0001

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Middle Pleistocene (Irvingtonian) Ochotona (Lagomorpha: Ochotonidae) from Porcupine Cave

Middle Pleistocene (Irvingtonian) Ochotona (Lagomorpha: Ochotonidae) from Porcupine Cave

Chapter:
(p.155) Fourteen Middle Pleistocene (Irvingtonian) Ochotona (Lagomorpha: Ochotonidae) from Porcupine Cave
Source:
Biodiversity Response to Climate Change in the Middle Pleistocene
Author(s):

Jim I. Mead

Margarita Erbajeva

Sandra L. Swift

Publisher:
University of California Press
DOI:10.1525/california/9780520240827.003.0014

The lagomorph family Ochotonidae, represented today by a single living genus (Ochotona [pika]), originated in the middle Oligocene of Asia. The North American record of Ochotona is sparse until the early Pleistocene Irvingtonian, when a more widespread occurrence is indicated. At least two morphological forms of Ochotona lived in North America during the Irvingtonian, one large and one small. This chapter presents the first record of Irvingtonian Ochotona from the intermountain West, a record from high-elevation Porcupine Cave, Colorado.

Keywords:   lagomorph, Ochotonidae, Ochotona, pika, Porcupine Cave

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