Genus Chalaziosphaeridium
- Species total:
- 10
- Age range:
- 540 - 0 MA (obsolete dating)
- IRMNG:
- find
Name | From | To | Age range |
---|---|---|---|
Chalaziosphaeridium | Nd | Nd |
|
Chalaziosphaeridium avitum | Late Ordovician | Late Ordovician |
|
Chalaziosphaeridium delicatum | Early Ordovician | Early Ordovician |
|
Chalaziosphaeridium dilatostellum | Late Ordovician | Late Ordovician |
|
Chalaziosphaeridium estoniense | Silurian | Silurian |
|
Chalaziosphaeridium granosum | Early Ordovician | Early Ordovician |
|
Chalaziosphaeridium granulatum | Late Ordovician | Late Ordovician |
|
Chalaziosphaeridium oligoprojectum | Wenlockian | Wenlockian |
|
Chalaziosphaeridium sp | Middle Cambrian | Middle Cambrian |
|
Chalaziosphaeridium tenuum | Wenlockian | Wenlockian |
|