Genus Hystrichosphaeridium
- Species total:
- 513
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
Name | From | To | Age range |
---|---|---|---|
Hystrichosphaeridium trispinosum | Ordovician | Mississippian |
|
Hystrichosphaeridium vitile | Early Ordovician | Early Ordovician |
|
Hystrichosphaeridium longispinosoides | Late Cambrian | Middle Ordovician |
|
Hystrichosphaeridium sexradiatum | Late Cambrian | Tremadocian |
|
Hystrichosphaeridium conspicuum | Late Cambrian | Late Cambrian |
|
Hystrichosphaeridium multipilosum | Late Cambrian | Late Clintonian |
|
Hystrichosphaeridium sp. Eise.,1951 | Late Cambrian | Middle Gothlandian |
|
Hystrichosphaeridium brevispinosum | Late Cambrian | Late Eocene |
|
Hystrichosphaeridium pateum | Middle Cambrian | Middle Cambrian |
|
Hystrichosphaeridium mutabile | Middle Cambrian | Middle Cambrian |
|
Hystrichosphaeridium hirsutoides | Middle Cambrian | Middle Cambrian |
|
Hystrichosphaeridium rotundatum | Middle Cambrian | Middle Cambrian |
|
Hystrichosphaeridium longispinosum | Early Cambrian | Early Mississippian |
|
Hystrichosphaeridium clavatum | Cambrian | Cambrian |
|
Hystrichosphaeridium insigne | Early Cambrian | Middle Cambrian |
|
Hystrichosphaeridium tolboschana | Early Cambrian | Middle Cambrian |
|
Hystrichosphaeridium quadridactylites | Early Paleozoic | Late Devonian |
|