Genus Circulina

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