SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 57 



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Madison formation, in provisional classification 354 



Madison sandstone, listed with Upper Cambrian of Wisconsin 353 



magnifictts, see Dikelocephalus. 



manticula, see Lingidella. 



marica, see Saukia. 



Matthew, G. F., discussion of Dikelocephalus by, cited 366 



mccoyi, see Chuangia. 



megalops, see Dikelocephalus. 



Mendota formation, in provisional classification 354 



Mendota limestone, listed with Upper Cambrian of Wisconsin 353 



Metoptoina sp., listed with St. Lawrence fauna 356 



Micromitra sculptilis Meek, listed from locality 62 361 



minis caensis, see Dikelocephalus and Ptychaspis. 



Minneiska, Minnesota, Upper Cambrian locality 339f 371 



Upper Cambrian locality 99 379, 388 



Minnesota, former classification of Upper Cambrian formations in 353 



geographic distribution of Dikelocephalus in 364 



range of Dikelocephalinae in 359 



Upper Cambrian locality 83^ at Trempealeau 371 



locality 97 at Lake Pepin 371 



locality 99 at Minneiska 379, 388 



locality 113 at La Grange Mountain 360 



locality 339* at Minneiska 371 



locality 34 6d near 37;^, 



minnesotoisis, see Dikelocephalus. 



minor, see Lonchoccphalus. 



miqueli, see Asaphcliua. 



misa, see Conokephalina and Dikelocephalus. 



Mississippi area, Dikelocephalus in 359 



Mississippi Valley, Dikelocephalus minnesotensis confined to 370 



Missouri, range of Dikelocephalinae in 359 



Montana, geographic distribution of Dikelocephalus in 364 



locality (151) of Dikelocephalus sp. undt. (footnote) 391 



Monte Cristo mine, locality (20b) of Saukia coloradoensis Z77 



Morgan's Creek, Texas, Upper Cambrian locality 70a near 359. 



mosia, see Lingulella. 



Mt. Simon formation, in provisional classification 354 



multicinctus, see Dikelocephalus. 



murchisoni, see Serpulites. 



Murchisonia sp. undt., listed with St. Lawrence fauna 356 



nasutus, see Conaspis and Conocephalites. 



Nevada, Calvinella tenuisculpta from Pogonip limestone of 359- 



locality of Saukia marica in, discussed 361 



Lower Ordovician locality 201a 359 



possible fragments of Dikelocephalus minnesotensis 370 



Upper Cambrian locality 62 near Adams Hill 361 



Upper Cambrian locality 66, Dunderberg mine 362 



New Jersey, Lower Ozarkian locality iir at Newton 362 



