312 BRITISH AVONIAN CONODONT FAUNAS 
Skateraw, Lower, 30, 50, 265 
Middle, 30, 50 
Upper, 30, 265 
Skipsey’s Marine Band, 7 
Snaizeholme Valley, 28, 263 
Somerset, 6, I1 
South Dakota, 11 
South Staffordshire, 6 
Southern Uplands, 11 
South Wales Coalfield, North Crop, 22-24, 
32-33, 35-36, 39, 40-41, 44-48, 50-51, 
54, 56, 58, 63, 66, 95, 102, 193, 200, 
244-245, 257-60, 277 
South West Province, 4, 6, 11, 13, 48, 56, 62, 
244-245, 277 
Spain, 64-65 
Spathognathodus, 33-34, 200, 209, 221-245 
aculeatus, 53-54, 200, 230, 236-237 
anteposicornis, 34, 39, 200, 222-223, 231, 
236-237 
bidentatus, 107 
bischoffi, 204, 223, 236, 239 
cf. campbelli, 34, 233 
cf. cristulus, 34, 39, 40-42, 48, 233-234 
cf. vobustus, 34, 39, 48, 235, 240 
chouteauensis, 229, 231, 235 
coaptus, 224, 225 
costatus, 53-54, 59, 202, 236 
costatus costatus, 33-34, 39-41, 46, 48, 202, 
204, 225-226, 236-237 
costatus costatus—Gnathodus delicatus 
Assemblage Zone, 39, 40, 48, 56-57, 277 
costatus (spinulicostatus) ultimus, 202, 236 
costatus sulciferus, 33-34, 39, 40-41, 200, 
226, 236 
costatus sulciferus—Gnathodus delicatus 
Assemblage Zone, 56 
costatus Zone, 53, 55, 59 
crassidentatus, 33-34, 39, 41, 48, 225-227, 
229, 231, 235, 240 
cristulus, 34, 43, 45, 107, 227, 234 
cyvius, 33-34, 39, 227, 234 
denticulatus, 225, 229 
elongatus, 33-34, 39, 48, 228-229, 231 
plumulus, 34, 54, 79, 230-231 
plumulus plumulus, 33, 36, 39, 46, 53, 85, 
200, 229, 230-231, 236 
plumulus nodosus, 33, 38, 230 
plumulus shirleyae, 33, 36, 230-231 
pulcher, 34, 41, 231 
vegularis, 234 
vobustus, 46, 235 
vobustus—S. tridentatus Assemblage Zone, 
39, 48, 55, 277 
scitulus, 34, 44, 232 
scitulus subsp. A, 232 
sp. A, 239, 240 
sp. B, 240 
spinulicostatus, 202, 230, 236 
spinulicostatus ultimus, 202 
Sp. NOv., 240, 241 
stabilis, 231 
sulciferus, 230, 235 
tvridentatus, 33-34, 39, 41, 48, 206, 230, 
231, 235, 230-237 
zieglevi sp. NOV., 236, 238, 239 
Spores, 54 
Staurognathus, 35, 64-65 
St. Genevieve Formation, Io, 44, 63 
St. George’s Land, 11 
St. Louis Limestone, Io, 63 
St. Louis Formation, 43, 44, 62, 77, 277 
St. Mellion, 6 
Sublaevis Beds, 17 
Se Subzone, 15, 20, 22, 25, 42-44, 46, 62, 245, 
258, 277 
S Zone, 15, 17, 22, 32, 42-43, 61-62, 245, 251 
Summary, 52 
Synprioniodina, 90 
Tamar Valley, 6 
Tanhouse Beds, 18 
Taphrognathus, 35, 43, 62-63, 78, 85, 178, 
241-242, 245 
vavians, 35, 43-44, 51, 62, 241-242 
vavians—A patognathus Assemblage Zone, 
Io, 61-62 
varians—Cavusgnathus—A patognathus 
Zone, 43, 61 
Teesdale, 26 
Tennessee, 10 
Texas, 203 
Thorny Force Sandstone, 27 
Three Cliffs Bay, 18 
Three Yard Limestone, 26, 28, 45 
Titterstone Clee Hill, 25 
Tn, Stage, 53 
Tnya Stage, 53, 63 
Tnyp/Tnep Stages, 178 
Tnep Stage, 36, 63 
Tnee Stage, 36, 39-40, 63 
Tnga Stage, 40, 63-65 
Tnsgp Stage, 9, 41, 42, 64-65 
Tne Stage, 9, 42, 45 
Tonge’s Marine Band, 7 
