Genus Circulina

Species total:
20
Age range:
280 - 22.5 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Circulina sp.2 Nd Nd
Circulina elatior Early Cretaceous Early Cretaceous
Circulina minima Cretaceous Cretaceous
Circulina bicycla Early Jurassic Early Jurassic
Circulina sp.A Liassic Liassic
Circulina parva Jurassic Paleocene
Circulina sp.B Liassic Liassic
Circulina funifera Early Jurassic Early Jurassic
Circulina peristriata Early Jurassic Early Jurassic
Circulina tersa Late Norian Early Liassic
Circulina sp.1 Late Carnian Early Norian
Circulina granulata Carnian Liassic
Circulina classopollis Late Triassic Late Triassic
Circulina simplex Early Carnian Liassic
Circulina sp.2 Medu.,1977 Triassic Triassic
Circulina sp.1 Medu.,1977 Triassic Triassic
Circulina sp.3 Medu.,1977 Triassic Triassic