Taeniatum |
Taeniatum crassum
|
China(Hopei) |
Early Ordovician |
|
Trachysphaeridium |
Trachysphaeridium planum
|
China(Hopei) |
Early Ordovician |
|
Trachysphaeridium |
Trachysphaeridium simplex
|
China(Hopei) |
Early Ordovician |
|
Trachysphaeridium |
Trachysphaeridium sp.1
sp. nov. |
China(Hopei) |
Early Ordovician |
|
Trachysphaeridium |
Trachysphaeridium sp.2
sp. nov. |
China(Hopei) |
Early Ordovician |
|
Trachysphaeridium |
Trachysphaeridium sp.3
sp. nov. |
China(Hopei) |
Early Ordovician |
|
Veryhachium |
Veryhachium lairdii
|
China(Hopei) |
Early Ordovician |
|
Veryhachium |
Veryhachium marginulatum
|
China(Hopei) |
Early Ordovician |
|
Veryhachium |
Veryhachium trispinosum
|
China(Hopei) |
Early Ordovician |
|
Veryhachium |
Veryhachium valiente
|
China(Hopei) |
Early Ordovician |
|