Ancyrochitina |
Ancyrochitina langei
|
North America |
Givetian |
|
Ancyrochitina |
Ancyrochitina langei
|
Asia |
Early Devonian |
|
Ancyrochitina |
Ancyrochitina langei
|
Asia |
Givetian |
|
Ancyrochitina |
Ancyrochitina longicornis
|
Africa |
Early Gothlandian |
Early Devonian |
Ancyrochitina |
Ancyrochitina megastyla
|
North America |
Givetian |
|
Ancyrochitina |
Ancyrochitina megastyla
|
Asia |
Givetian |
|
Ancyrochitina |
Ancyrochitina moldavica
|
Europe |
Llandoverian |
Ludlovian |
Ancyrochitina |
Ancyrochitina multiradiata
|
Europe |
Caradocian |
|
Ancyrochitina |
Ancyrochitina multiramosa
|
Africa |
Middle Gothlandian |
Late Gothlandian |
Ancyrochitina |
Ancyrochitina nodosa
|
Africa |
Middle Gothlandian |
Late Gothlandian |
Ancyrochitina |
Ancyrochitina pilosa
|
Africa |
Middle Gothlandian |
Early Devonian |
Ancyrochitina |
Ancyrochitina pilosa
|
Africa |
Frasnian |
|
Ancyrochitina |
Ancyrochitina preyi
|
Europe |
Llandoverian |
Ludlovian |
Ancyrochitina |
Ancyrochitina prima
|
Africa |
Late Ordovician |
Early Gothlandian |
Ancyrochitina |
Ancyrochitina primitiva
|
Europe |
Wenlockian |
|
Ancyrochitina |
Ancyrochitina saharica
|
Africa |
Llandoverian |
|
Ancyrochitina |
Ancyrochitina spinosa
|
Africa |
Frasnian |
Famennian |