Bulletin of the National Speleological Society - ISSN 0146-9517
Volume 30 Number 1: 11-16 - January 1968

A publication of the National Speleological Society

Vertebrate Remains from the Dickson Limestone Quarry, Halton County, Ontario, Canada
C.S. Churcher and M. Brock Fenton


A crevice cave in the Niagara Escarpment southwest of Milton, Ontario, has yielded remains of the painted turtle (Chrysemys picta), short-tailed shrew (Blarina brevicauda), smoky shrew (Sorex fumeus) big brown bat (Eptesicus fuscus), long-eared bat (Myotis keenii), little brown bat (M. lucifugus), red-backed vole (Clethrionomys gapperi), meadow vole (Microtus pennsylvanicus), red squirrel (Tamiasciurus hudsonius), deer mouse (Peromyscus maniculatus), muskrat (Ondatra zibethicus), and wapiti (Cervus canadensis). Because wapiti have been absent from the area since 1750 AD, a minimum age of 215 years is suggested for the fauna.

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