Dmnh Ucmp V

note: Supporting evidence for geological ages is presented by the references cited in the text.

note: Supporting evidence for geological ages is presented by the references cited in the text.

washing was not systematically employed, small specimens are probably underrepresented in the CM and UCMP collections. Material housed at the DMNH was collected by DMNH crews using similar techniques, plus screen washing, during field seasons between 1987 and 2000. DMNH extracted less than 1 m3 of fossiliferous sediment (D. Rasmussen, pers. comm., 2001).

TAPHONOMY

Mammalian carnivores may have used this locality as a den site and dragged in some of the bones, as indicated by gnaw marks on some specimens, fairly abundant representation of badger and coyote specimens (including at least one juvenile coyote), and the abundance of rabbit bones (Anderson, 1996). However, many of the rabbit limb bones are unbroken and show no evidence of gnawing, which led Shabel et al. (chapter 22) to suggest that undevoured carcasses were left in the cave by carnivores. Abundant jaws of rodents (ranging in size from marmots to voles) and other similarly sized specimens indicate that at least some of the fossils derive from carnivore fecal material or raptor pellets, many of which may have been dragged in by wood rats.

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