Genus Baltisphaeridium
- Species total:
- 794
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Baltisphaeridium recticornum | Arenigian | Arenigian |
|
| Baltisphaeridium redonense | Tremadocian | Llandeilian |
|
| Baltisphaeridium reductum | Early Gothlandian | Early Gothlandian |
|
| Baltisphaeridium reginaldii | Mesozoic | Cenozoic |
|
| Baltisphaeridium regnellii | Early Ordovician | Late Ordovician |
|
| Baltisphaeridium rehdense | Mesozoic | Cenozoic |
|
| Baltisphaeridium remidenticulatum | Wenlockian | Wenlockian |
|
| Baltisphaeridium reticuloidum | Middle Eocene | Middle Eocene |
|
| Baltisphaeridium reticulum | Early Cambrian | Early Cambrian |
|
| Baltisphaeridium retitum | Hauterivian | Hauterivian |
|
| Baltisphaeridium rhabdophorum | Late Cretaceous | Late Cretaceous |
|
| Baltisphaeridium rigens | Paleozoic | Wenlockian |
|
| Baltisphaeridium rigidum | Llanvirnian | Llanvirnian |
|
| Baltisphaeridium ritvae | Ordovician | Silurian |
|
| Baltisphaeridium rjabininii | Paleozoic | Paleozoic |
|
| Baltisphaeridium robertinum | Llandoverian | Emsian |
|
| Baltisphaeridium robustispinosum | Paleozoic | Wenlockian |
|