Genus Costatheca
- Species total:
- 15
- Age range:
- 160 - 49 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Costatheca verrucata | Campanian | Maastrichtian |
|
| Costatheca tenuis | Late Cretaceous | Maastrichtian |
|
| Costatheca striata | Senonian | Maastrichtian |
|
| Costatheca sp.A | Late Cretaceous | Maastrichtian |
|
| Costatheca sp | Late Jurassic | Maastrichtian |
|
| Costatheca quadriplicata | Senonian | Senonian |
|
| Costatheca levis | Late Cretaceous | Late Cretaceous |
|
| Costatheca lata | Cenomanian | Cenomanian |
|
| Costatheca halli | Cenomanian | Cenomanian |
|
| Costatheca elongata | Late Cenomanian | Maastrichtian |
|
| Costatheca diskoensis | Cretaceous | Maastrichtian |
|
| Costatheca diikstrae | Thanetian | Sparnacian |
|
| Costatheca dentata | Senonian | Maastrichtian |
|
| Costatheca dakotaensis | Cenomanian | Maastrichtian |
|
| Costatheca | Cenomanian | Turonian |
|