PE 54864 |
Olenidae |
Triarthrus beckii (Green) |
|
|
|
2284509 |
Ordovician |
Utica Shale |
3 image files |
P 16954 |
|
Sphaerocoryphe maquoketensis Slocom, 1913 |
A. W. Slocom |
United States of America |
|
2295745 |
Ordovician |
Maquoketa Shale |
|
UC 6308 |
Asaphidae |
Asaphus (isotelus) iowensis Owen, 1852 |
|
United States of America |
|
2292490 |
Ordovician |
Maquoketa Shale |
|
PE 56597 |
Calymenidae |
Flexicalymene meeki |
D. Cooper |
United States of America |
|
2213577 |
Ordovician |
|
3 image files |
UC 9581 |
Odontopleuridae |
Acidaspis |
|
United States of America |
|
2215154 |
Ordovician |
|
|
UC 35453 |
Pterygometopidae |
Eomonorachus intermedius (Walcott) |
|
United States of America |
|
2296050 |
Ordovician |
Platteville |
|
UC 35454 |
Pterygometopidae |
Eomonorachus intermedius (Walcott) |
|
United States of America |
|
2296052 |
Ordovician |
Platteville |
|
UC 29547 |
|
Isochilina ampla (Ulrich, 1879) |
|
|
|
2288821 |
Ordovician |
|
|
PE 56317 |
Asaphidae |
Isotelus gigas Roy, 1941 |
|
|
|
2282336 |
Ordovician |
|
3 image files |
PE 17024 |
Pterygometopidae |
Pterygometopus fredericki Slocom, 1913 |
A. W. Slocom |
United States of America |
|
2291455 |
Ordovician |
Maquoketa Shale |
|
PE 366 |
Asaphidae |
Bellefontia colleiana Raymond |
|
|
|
2282332 |
Ordovician |
Beekmantown Dolomite |
3 image files |
PE 56144 |
|
Ogyginus intermedius (Elles, 1940) |
R. Levi-Setti |
Wales |
|
2267785 |
Ordovician |
|
|
UC 10250 |
Illaenidae |
Illaenus columbiana Weller, 1903 |
|
United States of America |
|
2295017 |
Ordovician |
Kittatinny Limestone |
|
UC 10218 |
Asaphidae |
Isotelus canalis (Whitfield, 1886) |
|
|
|
2268984 |
Ordovician |
Kittatinny Limestone |
|
UC 10223 |
Styginidae |
Bumastus transversalis (Weller, 1903) |
|
United States of America |
|
2291205 |
Ordovician |
Trenton Limestone |
|
UC 10263 |
Styginidae |
Bumastus transversalis (Weller, 1903) |
|
United States of America |
|
2294564 |
Ordovician |
Trenton Limestone |
|
UC 10373 |
Proetidae |
Proetus latimarginatus Weller, 1903 |
|
United States of America |
|
2294665 |
Ordovician |
Trenton Limestone |
|
UC 10228 |
Harpetidae |
Harpina ottawensis (Billings, 1865) |
|
|
|
2268991 |
Ordovician |
Trenton Limestone |
|
UC 37888 |
Calmoniidae |
Calmonia senaria Conrad, 1841 |
|
|
|
2269000 |
Ordovician |
Trenton Limestone |
|
UC 15943 |
Dikelocephalidae |
Dikelocephalus minnesotensis Owen, 1852 |
|
United States of America |
|
2239216 |
Ordovician |
|
|
UC 12321 |
Encrinuridae |
Encrinurus trentonensis Walcott, 1877 |
|
United States of America |
|
2293516 |
Ordovician |
Trenton Limestone |
|
UC 12323 |
Encrinuridae |
Encrinurus raricostatus Walcott, 1877 |
|
United States of America |
|
2293514 |
Ordovician |
Trenton Limestone |
1 image file |
UC 8789 |
|
Beyrichia cincinnatiensis Miller |
Faber |
United States of America |
|
2292141 |
Ordovician |
|
|
UC 22211 |
Cheiruridae |
Ceraurus pleurexanthemus Green, 1832 |
|
United States of America |
|
2239230 |
Ordovician |
Trenton Limestone |
|
PE 56347 |
Pterygometopidae |
Pterygometopus callicyhalus Hall |
|
|
|
2283700 |
Ordovician |
Decorah Shale |
2 image files |