Genus Quadraeculina

Species total:
24
Age range:
280 - 1.2 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Quadraeculina primigena Middle Jurassic Middle Jurassic
Quadraeculina primitiva Early Triassic Early Cretaceous
Quadraeculina prolongata Berriasian Albian
Quadraeculina rhomboides Liassic Liassic
Quadraeculina sp Early Triassic Tertiary
Quadraeculina sp. Zhan.,1978 Mesozoic Mesozoic
Quadraeculina torus Late Triassic Late Triassic