190 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I48 



Heath Formation, 108, 124 



Hess Formation, 140 



Hinge plate, 2, 14, 15, 16, 18, 19 (fig. 

 1), 21, 22, 29, 31, 34, 36, 37, 39, 42 

 (fig. 4, 5), 46 (fig. 7), 49 (fig. 8), 

 67 (fig. 11), 70 (fig. 13), 77, 78, 82, 

 84 (fig. 16), 86, 87 (fig. 17), 91, 93 

 (fig. 19), 100 (fig. 20, 21), 103 (fig. 

 22), 106 (fig. 23), 110 (fig. 25), 113 

 (fig. 26), 133 (fig. 31), 140 (fig. 33), 

 153, 162, 164 



Hircinisca Havlicek, 29 



Hueco Limestone, 148 



Hungry Hollow Formation, 54, 55 



Hypothyridae, 33 



Hypothyris gregeri Branson, 40, 48 



Illinois, 40, 43, 51, 52, 61, 73, 74, 75, 

 117,118,119 



Indiana, 40, 55, 97, 126, 128, 129, 130 



Institella Cooper, 11 



Intercamarophorial plate, 14, 16, 19 

 (fig. 1), 29, 31, 36, 37, 39, 42 (fig. 5), 

 46 (fig. 7), 49 (fig. 8), 64, 65, 67 

 (fig. 11), 68 (fig. 12), 70 (fig. 13), 

 71, 72, 77, 78, 79, 80 (fig. 15), 82, 84 

 (fig. 16), 86, 91, 92 (fig. 18), 93 (fig. 

 19), 100 (fig. 21), 103 (fig. 22), 106 

 (fig. 23), 110 (fig. 25), 113 (fig. 26), 

 133 (fig. 31), 140 (fig. 33), 153, 164 



Iowa, 40, 49, 51, 52, 56, 163 



Jurassic, 7 



Kazanian, 86, 91 



Kentucky, 40, 117, 118, 119 



Kinderhook, 73, 74, 77, 114, 138, 163 



Laevicamera Grabau, 63, 77 



Levicamera Grabau, 63, 77, 79 



athyriformis Grabau, 78, 79, 81 



Levicamera (of Sarycheva and Sokol- 

 skaya), 63, 77 



Leonard Formation, 151, 155, 156 



Leptacna Dalman, 11 



Limbella Stehli, 11 



Limbimurina Cooper, 11 



Liocoelia Schuchert and Cooper, 162 



Lodgepole Limestone, 122 



Logansport Limestone, 128, 130 



Lophophore, 2, 22, 23, 28 



Magdalena Group, 105, 108 



Maping Limestone, 64, 65 



Meekella White and St. John, 16, 17 



Meramec, 102, 104, 119 



Meristellidae, meristellid, 163 

 Michigan, 42, 43, 45, 46, 47, 58, 60, 61, 



63 

 Mississippian, 2, 3, 4, 5, 7, 8, 11, 12, 16, 



26, 27, 29, 30 (fig. 3), 31, 39, 40, 65, 



66, 67, 68, 69, 73, 75, 77, 82, 98, 102, 



103, 104, 105, 109, 110, 111, 114, 119, 



124, 131, 132, 138, 163 

 Missouri, 40, 48, 51, 52, 78, 81, 119, 125, 



126 

 Montana, 40, 105, 122, 124 

 Moorefield Formation, 100, 101 

 Morrow Series, 133, 134, 135 

 Moscovian, 65 

 Moscow Basin, 13, 89 

 Muscle attachment, 15, 16, 17, 18, 20, 21 

 Muscle marks, 18, 20, 21, 34, 141 

 Mystrophora Kayser, 15 

 Nantanella Grabeau, 162 



mapingensis Grabau, 162 

 Neorhynchia Thomson, 7 

 Nevada, 111, 131, 132 

 New Mexico, 105, 108 

 Newton Creek Limestone, 42, 43, 45 

 New York, 54, 55, 141 

 Norella Bittner, 7 

 Ohio, 55 

 Oklahoma, 100, 101, 102, 106, 108, 109, 



133, 135 

 Ombonia Caneva, 18 

 Ontario, 52, 53, 54, 55, 129, 130 

 Ontogeny, 12, 15, 29 

 Oregon, 159, 160 

 Orthoidea, orthoid, 17, 34 

 Orthotetacea, 15, 17, 18 

 Orthotetella R. E. King, 15 

 Pakistan, 29, 89, 92, 94 

 Pallial marks, 9, 10, 20, 23, 24, 34, 35, 



141, 151 

 Paranorella Cloud, 7 

 Parentcletes R. E. King, 7, 15 

 Pecten, Miiller, 10 

 Pedicle, 10, 13, 21, 26, 27, 28, 39 

 Pennsylvanian, 4, 5, 7, 26, 29, 30 (fig. 



3), 31, 65, 78, 81, 98, 105, 125, 126, 



135 

 Pentameracea, 17, 33, 34 

 Pentameridae, pentamerid, 33, 34 

 Pentamerinae, 33 

 Pentameroidea pentameroid, 2, 17, 18, 



33, 34, 35 



