Cyathochitina |
Cyathochitina campanulaeformis
|
North America |
Middle Ordovician |
Late Ordovician |
Cyathochitina |
Cyathochitina campanulaeformis
|
Europe |
Middle Ordovician |
Late Gothlandian |
Cyathochitina |
Cyathochitina campanulaeformis
|
Asia |
Middle Ordovician |
Late Ordovician |
Cyathochitina |
Cyathochitina conica
|
Europe |
Late Ordovician |
|
Cyathochitina |
Cyathochitina cylindrica
|
Nd |
Middle Ordovician |
Early Gothlandian |
Cyathochitina |
Cyathochitina dispar
|
Europe |
Caradocian |
|
Cyathochitina |
Cyathochitina dispar
|
Europe |
Llandoverian |
Ludlovian |
Cyathochitina |
Cyathochitina dispar
|
North America |
Caradocian |
|
Cyathochitina |
Cyathochitina dispar
|
Asia |
Caradocian |
|
Cyathochitina |
Cyathochitina djadoensis
|
Africa |
Caradocian |
|
Cyathochitina |
Cyathochitina elenitae
|
Europe |
Middle Gothlandian |
Late Gothlandian |
Cyathochitina |
Cyathochitina elongata
|
Africa |
Caradocian |
|
Cyathochitina |
Cyathochitina fistulosa
|
Africa |
Middle Ordovician |
Late Ordovician |
Cyathochitina |
Cyathochitina fistulosa
|
Africa |
Late Gothlandian |
|
Cyathochitina |
Cyathochitina fusiformis
|
Africa |
Caradocian |
|
Cyathochitina |
Cyathochitina granulata
|
Europe |
Caradocian |
|
Cyathochitina |
Cyathochitina hyalophrys
|
North America |
Caradocian |
|