Priscogalea |
Priscogalea columellifera
|
Nd |
Nd |
|
Priscogalea |
Priscogalea cortinula
|
Nd |
Nd |
|
Priscogalea |
Priscogalea cuvillieri
|
Nd |
Nd |
|
Priscogalea |
Priscogalea furcata
|
Nd |
Nd |
|
Priscogalea |
Priscogalea multarea
|
Nd |
Nd |
|
Priscogalea |
Priscogalea multiclaustra
|
Nd |
Nd |
|
Priscogalea |
Priscogalea simplex
|
Nd |
Nd |
|
Priscotheca |
Priscotheca complanata
|
Nd |
Nd |
|
Priscotheca |
Priscotheca minima
|
Nd |
Nd |
|
Priscotheca |
Priscotheca prismatica
|
Nd |
Nd |
|
Priscotheca |
Priscotheca raia
|
Nd |
Nd |
|
Priscotheca |
Priscotheca tumida
|
Nd |
Nd |
|
Protoarchaeosacculina |
Protoarchaeosacculina atava
|
Nd |
Nd |
|
Protoleiosphaeridium |
Protoleiosphaeridium
|
Nd |
Nd |
|
Protoleiosphaeridium |
Protoleiosphaeridium cambriense
|
Nd |
Nd |
|
Protoleiosphaeridium |
Protoleiosphaeridium conglutinatum
|
USSR(Pre-Baltic) |
Proterozoic |
Middle Ordovician |
Protoleiosphaeridium |
Protoleiosphaeridium cryptogranulosum
|
Canada(Alberta) |
Late Devonian |
|