P 16630 B |
Cheiruridae |
Ceraurus elginensis Slocom, 1913 |
A. W. Slocom |
United States of America |
|
2213237 |
Ordovician |
Maquoketa Shale |
|
UC 23593 |
Lichidae |
Lichas faberi Miller, 1889 |
|
United States of America |
|
2239219 |
Ordovician |
|
|
P 16998 |
|
Megalaspis beckeri Slocom, 1913 |
|
|
|
2282382 |
Ordovician |
Maquoketa Shale |
|
UC 15923 |
Calymenidae |
Calymene senaria Conrad, 1841 |
|
United States of America |
|
2239226 |
Ordovician |
Trenton Limestone |
|
UC 22196 |
Cheiruridae |
Ceraurus pleurexanthemus Green, 1832 |
|
United States of America |
|
2239229 |
Ordovician |
Trenton Limestone |
|
UC 11483 |
Pterygometopidae |
Pterygometopus intermedius (Walcott, 1877) |
S. Weller |
United States of America |
|
2213032 |
Ordovician |
Auburn Chert |
2 image files |
P 11152 |
|
Sphaerocoryphe maquoketensis Slocom, 1913 |
A. W. Slocom |
United States of America |
|
2213235 |
Ordovician |
Maquoketa Shale |
|
UC 14814 |
Asaphidae |
Isotelus iowensis Owen, 1852 |
|
|
|
2282360 |
Ordovician |
Maquoketa Shale |
|
UC 28043 |
Pterygometopidae |
Calliops larrabeei (Slocom, 1913) |
|
|
|
2283696 |
Ordovician |
Maquoketa Shale |
|
UC 33424 |
Strophomenidae |
Strophomena delicatula Fenton, 1928 |
S. Weller |
United States of America |
|
2213206 |
Ordovician |
Decorah Shale |
|
UC 25631 |
Rhynchotrematidae |
Rhynchotrema decorahense Fenton & Fenton, 1922 |
|
United States of America |
|
2215221 |
Ordovician |
Decorah Shale |
|
PE 60420 |
Protozygidae |
Protozyga nicoletti |
W. Taylor |
United States of America |
|
2279364 |
Ordovician |
Mifflin |
|
UC 27458 |
|
Zygospira calhounensis Fenton & Fenton, 1922 |
|
United States of America |
|
2204204 |
Ordovician |
Kimmswick Limestone |
|
UC 25539 |
Strophomenidae |
Strophomena delicatula Fenton, 1928 |
S. Weller |
United States of America |
|
2213204 |
Ordovician |
Decorah Shale |
|
UC 12434 |
|
Lycophoria nucella (Dalman, 1828) |
|
|
|
2239377 |
Ordovician |
|
|
UC 2325 |
|
Orthis morrowensis James, 1874 |
|
United States of America |
|
2239895 |
Ordovician |
Grant Lake |
|
UC 2392 |
Strophomenidae |
Strophomena declivis James, 1874 |
|
United States of America |
|
2239905 |
Ordovician |
|
|
UC 6935 |
Rhynchotrematidae |
Rhynchotrema wisconsinse Fenton & Fenton, 1922 |
|
|
|
2267345 |
Ordovician |
|
|
P 28281 |
|
Zygospira maynei Roy, 1941 |
|
Canada |
|
2204147 |
Ordovician |
|
|
P 28263 A |
Dalmanellidae |
Dalmanella diminutiva Roy, 1941 |
|
Canada |
|
2204148 |
Ordovician |
|
|
P 28265 |
Dalmanellidae |
Dalmanella sillimani Roy, 1941 |
S. K. Roy |
Canada |
|
2204116 |
Ordovician |
|
|
UC 11961 |
|
Hindella umbonata (Billings, 1865) |
|
Canada |
|
2239476 |
Ordovician |
Ellis Bay |
|
P 28260 |
|
Hesperorthis interplicata Roy, 1941 |
|
Canada |
|
2204150 |
Ordovician |
|
|
P 28262 A |
Plaesiomyidae |
Austinella subcircularis Roy, 1941 |
R. W. Porter |
Canada |
|
2204112 |
Ordovician |
|
|
UC 12396 |
Anazygidae |
Catazyga headi anticostiensis |
|
Canada |
50 |
2239339 |
Ordovician |
|
|