Hystrichosphaeridium |
Hystrichosphaeridium brevispinosum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium bulbosum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium cantharellus
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium capitatum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium castanea
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium caulleryi
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium centrocarpum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium choanophorum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium circumscissum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium claviculorum
|
France(Calvados) |
Early Oxfordian |
|
Hystrichosphaeridium |
Hystrichosphaeridium clavigerum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium clavigerum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium cognitum
|
USSR(Pre-Baltic) |
Early Ordovician |
Middle Ordovician |
Hystrichosphaeridium |
Hystrichosphaeridium colligerum
|
Australia(Victoria) |
Early Eocene |
|
Hystrichosphaeridium |
Hystrichosphaeridium complex
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium coniferum
|
W.Germany(Bavaria) |
Late Givetian |
|
Hystrichosphaeridium |
Hystrichosphaeridium conspicuum
|
Nd |
Nd |
|