TY - JOUR A1 - Rigby,J.K. A1 - Potter,A.W. A1 - Anderson,N.K. T1 - Ordovician sponges from the Montgomery Limestone, Taylorsville area, northern Sierra Nevada, California, USA JF - Bulletin of Geosciences JA - Bull. Geosci. Y1 - 2008 VL - 83 IS - 3 SP - 299 EP - 310 CY - Prague PB - Czech Geological Survey SN - 1803-1943 (online), 1802-6222 (print) AV - Free KW - Ordovician KW - Montgomery Limestone KW - Sierra Nevada KW - California KW - Girtyocoeliana KW - Amblysiphonella KW - Cliefdenella KW - Rigbyetia KW - Corymbospongia AB - The modest faunule of silicified fossil demosponges, documented here, was recovered from the Upper Ordovician Montgomery Limestone in the Taylorsville area, in the northern Sierra Nevada of northern California. Included are specimens of the ceractinomorph angullongiid Amblysiphonelloidea tubulara Rigby & Potter, 1986, the girtyocoelliid Girtyocoeliana epiporata (Rigby & Potter, 1986), the sebargasiid Amblysiphonella sp., and the cliefdenellids Cliefdenella alaskaensis Stock, 1981, and Rigbyetia obconica (Rigby & Potter, 1986). In addition, specimens of the vaceletiid Corymbospongia adnata Rigby & Potter, 1986, are described and figured. The assemblage is closely related to faunules of sphinctozoan sponges earlier reported by Rigby & Potter (1986) from the eastern Klamath Mountains, to the west in northern California. ER -