Collection Protocols

This locality was a highly fossiliferous lens located on the north wall of the mine adit approximately 4-6 m from the entrance. CM crews collected with trenching shovels 20 bags of sediment, each with a volume of about 2000 cm3. Sediments were washed with a hose through stacked screens of 2, 4, 8, 16, 20, and 30 squares/2.54 cm (1 in.). Bones were picked off the coarsest two meshes in the field; the rest was brought back to the lab for picking. The matrix was generally picked without the aid of magnification. Large bones (e.g., horse) were removed from the sample as they were spotted during excavation. A split of the material of which this sample is composed is housed at UCMP and CM. Details of the DMNH collection protocol are available from DMNH.

TAPHONOMY

The taphonomy of the site has not been studied in detail. However, the physical setting is near the top of the current hill, with bones derived from a vertically oriented, unstrati-fied, poorly sorted lens composed of a jumble of sediment and rocks with diameters ranging from less than 1 cm to more than 20 cm in diameter. The preponderance of small bones and fragments coupled with the abundance of bone in the sediment (this is one of the richest localities in the cave) suggests that raptor pellets and carnivore scat played major roles in the accumulation. These features are reminiscent of such fissure fill deposits as New Paris No. 4, Pennsylvania (Guilday et al., 1964) and Strait Canyon Fissure, Virginia (Barnosky, 1993), and they suggest that the bones accumulated in a vertical crack in the dolomite that extended to the surface.

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