Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hystrichosphaeridium sp.C Salu.et al,1969 | Early Eocene | Early Eocene |
|
| Hystrichosphaeridium circumscissum | Early Ordovician | Early Ordovician |
|
| Hystrichosphaeridium diploporum | Ordovician | Ordovician |
|
| Hystrichosphaeridium armatum | Cretaceous | Cretaceous |
|
| Hystrichosphaeridium eisenackii | Late Givetian | Late Givetian |
|
| Hystrichosphaeridium sprucegrovensis | Late Devonian | Late Devonian |
|
| Hystrichosphaeridium hymenoferum | Ordovician | Ordovician |
|
| Hystrichosphaeridium verschiedener | Nd | Nd |
|
| Hystrichosphaeridium type 2 | Tortonian | Tortonian |
|
| Hystrichosphaeridium ordovicum | Ordovician | Ordovician |
|
| Hystrichosphaeridium rotundatum | Middle Cambrian | Middle Cambrian |
|
| Hystrichosphaeridium salvadorense | Senonian | Senonian |
|
| Hystrichosphaeridium senii | Eocene | Eocene |
|
| Hystrichosphaeridium cribrotubiferum | Early Oxfordian | Early Oxfordian |
|
| Hystrichosphaeridium sp. Bisw.,1962 | Late Cretaceous | Late Cretaceous |
|
| Hystrichosphaeridium saturnium | Middle Miocene | Middle Miocene |
|
| Hystrichosphaeridium bulbosum | Cretaceous | Cretaceous |
|