Genus Sphaerochitina
- Species total:
- 126
- Age range:
- 4100 - 289 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Sphaerochitina gracqui | Ordovician | Ashgillian |
|
| Sphaerochitina dubia | Ordovician | Late Gothlandian |
|
| Sphaerochitina prussica | Tremadocian | Caradocian |
|
| Sphaerochitina fungiformis | Tremadocian | Ludlovian |
|
| Sphaerochitina oelandica | Arenigian | Arenigian |
|
| Sphaerochitina lepta | Arenigian | Early Llandoverian |
|
| Sphaerochitina vulgaris | Arenigian | Llandeilian |
|
| Sphaerochitina brechyta | Arenigian | Arenigian |
|
| Sphaerochitina sp. Gao,1985 | Arenigian | Arenigian |
|
| Sphaerochitina llorona | Middle Ordovician | Early Siegenian |
|
| Sphaerochitina lateris | Middle Ordovician | Middle Ordovician |
|
| Sphaerochitina suspensa | Middle Ordovician | Middle Ordovician |
|
| Sphaerochitina oblonga | Late Arenigian | Late Arenigian |
|
| Sphaerochitina mundana | Llanvirnian | Late Llandeilian |
|
| Sphaerochitina brevis | Late Ordovician | Early Gothlandian |
|
| Sphaerochitina symmetrica | Late Ordovician | Late Ordovician |
|
| Sphaerochitina singula | Late Ordovician | Late Ordovician |
|