Halochitina |
Halochitina retracta
|
Nd |
Nd |
|
Haplochitina |
Haplochitina
|
Nd |
Nd |
|
Haplochitina |
Haplochitina oumdoulensis
|
Nd |
Nd |
|
Helicochitina |
Helicochitina
|
Nd |
Nd |
|
Helicochitina |
Helicochitina viticula
|
Nd |
Nd |
|
Hercochitina |
Hercochitina
|
Canada(Anticosti Island) |
Ashgillian |
|
Hercochitina |
Hercochitina crickmayi
|
Canada(Anticosti Island) |
Ashgillian |
|
Hoegisphaera |
Hoegisphaera
|
Canada(Alberta) |
Frasnian |
|
Hoegisphaera |
Hoegisphaera glabra
|
Canada(Alberta) |
Frasnian |
|
Hyalochitina |
Hyalochitina
|
Ohio |
Late Maysvillian |
Early Richmondian |
Hyalochitina |
Hyalochitina hyalophrys
|
Ohio |
Early Maysvillian |
Early Richmondian |
Iberichitina |
Iberichitina
|
Nd |
Nd |
|
Iberichitina |
Iberichitina carmenchui
|
Nd |
Nd |
|
Idiochitina |
Idiochitina
|
Nd |
Nd |
|
Idiochitina |
Idiochitina platycera
|
Nd |
Nd |
|
Illichitina |
Illichitina crotalum
|
Nd |
Nd |
|
Jansoniuchitina |
Jansoniuchitina
|
Nd |
Nd |
|