Genus Emmetrocysta
- Species total:
- 7
- Age range:
- 164.67 - 5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Emmetrocysta | Kimmeridgian | Kimmeridgian |
|
| Emmetrocysta denticulata | Early Tertiary | Early Tertiary |
|
| Emmetrocysta fibrospinosa | Late Thanetian | Late Thanetian |
|
| Emmetrocysta sarjeantii | Late Bathonian | Berriasian |
|
| Emmetrocysta sp | Callovian | Late Miocene |
|
| Emmetrocysta sp. Edwa.et al,1984 | Late Paleocene | Early Eocene |
|
| Emmetrocysta urnaformis | Berriasian | Late Miocene |
|