Name | From | To | Age range |
---|---|---|---|
Quadraeculina primigena | Middle Jurassic | Middle Jurassic |
|
Quadraeculina apertus | Middle Callovian | Middle Callovian |
|
Quadraeculina humilis | Mesozoic | Mesozoic |
|
Quadraeculina rhomboides | Liassic | Liassic |
|
Quadraeculina laticorpina | Early Cretaceous | Early Cretaceous |
|
Quadraeculina exilis | Early Cretaceous | Early Cretaceous |
|
Quadraeculina torus | Late Triassic | Late Triassic |
|