Acanthochitina |
Acanthochitina barbata
|
Baltic |
Ordovician |
|
Ampullachitina |
Ampullachitina
|
Illinois |
Early Gothlandian |
|
Ampullachitina |
Ampullachitina ancyrea
|
Baltic |
Silurian |
|
Ampullachitina |
Ampullachitina diabolo
|
France |
Middle Gothlandian |
|
Ampullachitina |
Ampullachitina diabolo
|
Baltic |
Silurian |
|
Ampullachitina |
Ampullachitina diabolo
|
Czechoslovakia |
Ordovician |
|
Ampullachitina |
Ampullachitina fungiformis
|
Baltic |
Ordovician |
|
Ampullachitina |
Ampullachitina fungiformis
|
Czechoslovakia |
Silurian |
|
Ampullachitina |
Ampullachitina kuckersiana
|
France |
Middle Gothlandian |
|
Ampullachitina |
Ampullachitina kuckersiana
|
Baltic |
Ordovician |
|
Ampullachitina |
Ampullachitina laguncula
sp. nov. |
Illinois |
Early Gothlandian |
|
Ampullachitina |
Ampullachitina metancyrea
|
Baltic |
Silurian |
|
Ampullachitina |
Ampullachitina pistilliformis
|
Baltic |
Silurian |
|
Ampullachitina |
Ampullachitina protancyrea
|
Baltic |
Ordovician |
|
Ampullachitina |
Ampullachitina spinosa
|
Baltic |
Silurian |
|
Angochitina |
Angochitina bifurcata
sp. nov. |
Illinois |
Early Devonian |
|
Angochitina |
Angochitina capillata
|
Baltic |
Ordovician |
Silurian |