Genus Sphaerochitina
- Species total:
- 126
- Age range:
- 4100 - 289 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Sphaerochitina vulgaris | Arenigian | Llandeilian |
|
| Sphaerochitina mundana | Llanvirnian | Late Llandeilian |
|
| Sphaerochitina actonica | Caradocian | Middle Caradocian |
|
| Sphaerochitina prussica | Tremadocian | Caradocian |
|
| Sphaerochitina compactilis | Early Paleozoic | Ashgillian |
|
| Sphaerochitina gracqui | Ordovician | Ashgillian |
|
| Sphaerochitina lepta | Arenigian | Early Llandoverian |
|
| Sphaerochitina solitudina | Rhuddanian | Early Telychian |
|
| Sphaerochitina solutidina | Rhuddanian | Telychian |
|
| Sphaerochitina sp.B Pari.,1985 | Early Gothlandian | Late Telychian |
|
| Sphaerochitina brevis | Late Ordovician | Early Gothlandian |
|
| Sphaerochitina sp.A | Llandoverian | Early Wenlockian |
|
| Sphaerochitina sp.E | Late Llandoverian | Early Wenlockian |
|
| Sphaerochitina sp.B | Aeronian | Early Wenlockian |
|
| Sphaerochitina sp.G | Late Llandoverian | Early Wenlockian |
|
| Sphaerochitina sp.F | Late Llandoverian | Middle Wenlockian |
|
| Sphaerochitina serpaglii | Sheinwoodian | Homerian |
|