Conochitina |
Conochitina tuba
|
Europe |
Middle Wenlockian |
Early Ludlovian |
Conochitina |
Conochitina visbyensis
|
Europe |
Early Wenlockian |
|
Cyathochitina |
Cyathochitina anticostiensis
|
North America |
Middle Ashgillian |
Late Ashgillian |
Cyathochitina |
Cyathochitina calix
|
Europe |
Late Arenigian |
Middle Llanvirnian |
Cyathochitina |
Cyathochitina campanulaeformis
|
Europe |
Llanvirnian |
Early Llandoverian |
Cyathochitina |
Cyathochitina kuckersiana
|
Europe |
Caradocian |
Late Ashgillian |
Cyathochitina |
Cyathochitina kuckersiana
|
North America |
Caradocian |
Late Ashgillian |
Cyathochitina |
Cyathochitina stentor
|
Europe |
Middle Llandeilian |
Early Caradocian |
Cyathochitina |
Cyathochitina vaurealensis
|
North America |
Early Ashgillian |
Middle Ashgillian |
Desmochitina |
Desmochitina acollare
|
Europe |
Wenlockian |
|
Desmochitina |
Desmochitina complanata
|
Europe |
Late Caradocian |
Early Ashgillian |
Desmochitina |
Desmochitina complanata
|
North America |
Late Caradocian |
Early Ashgillian |
Desmochitina |
Desmochitina densa
|
Europe |
Late Llandoverian |
Early Wenlockian |
Desmochitina |
Desmochitina hemsiensis
|
Europe |
Ludlovian |
|
Desmochitina |
Desmochitina minor
|
Europe |
Late Arenigian |
Ashgillian |
Desmochitina |
Desmochitina minor
|
North America |
Late Arenigian |
Ashgillian |
Desmochitina |
Desmochitina minor
|
North America |
Famennian |
|