Genus Bialina

Species total:
12
Age range:
141 - 94 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Bialina Early Cretaceous Early Cretaceous
Bialina excelsa Early Cretaceous Aptian
Bialina exilis Early Cretaceous Cenomanian
Bialina glabrescens Early Cretaceous Early Cretaceous
Bialina imperfecta Early Cretaceous Early Cretaceous
Bialina latisacca Early Cretaceous Early Cretaceous
Bialina latisacciformis Hauterivian Hauterivian
Bialina lobata Early Cretaceous Middle Valanginian
Bialina longisaccata Hauterivian Hauterivian
Bialina ovaliformis Early Cretaceous Cenomanian
Bialina sacculifera Early Cretaceous Barremian
Bialina sinuatella Early Cretaceous Cenomanian