CAMBRIAN URACIIIOrODA — WALCOTT I29 



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•calcifera, see Syntrophia. 



Calciferoiis sandstone, New York, fossils in 72 



.callactis, see Orthis. 



calligramina, see Orthis. 



■Cambria, see Syntrophia. 



campbcUi, see Syntrophia. 



•Ceratopyge slate, Sweden, fossils in 85 



Ch'ang-hia limestone, China, fossils in 76 



Clark, Dr. William B., mentioned 80 



'Clarke, John M., mentioned in 



Clarkella, new genus no 



clarki, see Dearboriiia. 



■colleni, see Acrothclc. 



■coloradocnsis, see Billingsclla. 



■coriacea, see Acrothclc. 



■crenistria, see Micromitra (Patcrina). 



curvata, see Acrotrcta. 



T)arton, N. H., mentioned 6y 



dartoni, see Obelus (JVcstonia). 



DavidsovcUa Munier-Chalmar 72 



[Waagen] 72, 74 



linguloidcs Waagen 74 



Dearborn, Gen. Henry, mentioned 80 



Dearbornia, new genus 78 



clarki, new species 78, 80, pi. 8, fig. 7 



Deep Spring Valley, California, fossils in 81 



deiinita, see Acrotrcta. 



■deprcssa, see Acrotrcta. 



■desiderata, see Blkania. 



Dicellomus Hall 7^ 



parvus, new species 76, pi. 8, figs. 2 and 2a 



politus (Hall) 65, 76, 77 



prolificus, new species 77, pi. 8. figs. 3 and ^a 



Discina [Miquel] 77. 83 



JDiscinopsis 80 



discoideits, see Obolus. 



lEast Fork Canyon, Utah, fossils in 107 



Eldon formation, British Columbia, fossils in 6t 



Elkania Ford 65 



desiderata ( Billings) 66, 85 



ella, see Obolus (Westonia). 



•ella onaquicnsis, see Obolus {Westonia) . 



elongatus, see Obolus (Westonia) . 



Eoorthis, new genus 102, 104 



hastingsensis (Walcott) 104 



newberryi, new species 105, ig6, pi. 10, figs. 6 and 6(7 



remnicha (N. H. Winchell) 105 



rcmnicha ivinHeldensis (Walcott) 106 



thyone, new species 105, pi. 10, figs. 7 and 7a 



zuichitensis (Walcott) 104. 105 



zeno, new species 106, pi. 10, fig. 8 



