Parvichitina |
Parvichitina infraspinosa
|
Oklahoma |
Middle Ordovician |
Late Ordovician |
Parvichitina |
Parvichitina parvicolla
|
USSR(Yaroslav) |
Arenigian |
|
Parvichitina |
Parvichitina vasculiformis
|
Nigeria |
Late Ordovician |
|
Plectochitina |
Plectochitina carminae
|
Nd |
Nd |
|
Plectochitina |
Plectochitina combazii
|
Spain |
Late Llandoverian |
Early Gedinnian |
Plectochitina |
Plectochitina rosendae
|
France(Manche) |
Pridolian |
Gedinnian |
Plectochitina |
Plectochitina tapajonica
|
Brazil(Para) |
Middle Devonian |
|
Pogonochitina |
Pogonochitina aquitanica
|
France(Aquitaine) |
Llandeilian |
|
Pogonochitina |
Pogonochitina carmenchui
|
Spain |
Late Ludlovian |
Early Gedinnian |
Pogonochitina |
Pogonochitina cervicornis
|
Nd |
Nd |
|
Pogonochitina |
Pogonochitina dispar
|
Nd |
Nd |
|
Pogonochitina |
Pogonochitina eisenacki
|
Nd |
Nd |
|
Pogonochitina |
Pogonochitina grandis
|
Nd |
Nd |
|
Pogonochitina |
Pogonochitina simplex
|
Nd |
Nd |
|
Pogonochitina |
Pogonochitina spinifera
|
Nd |
Nd |
|
Pogonochitina |
Pogonochitina spinifera
|
France(Aquitaine) |
Llandeilian |
|
Poteriochitina |
Poteriochitina briarca
|
Nd |
Nd |
|