Genus Membranosphaera

Species total:
20
Age range:
230 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Membranosphaera tuberculata Oxfordian Campanian
Membranosphaera triangularis Early Valanginian Early Valanginian
Membranosphaera taiwaniana Early Cretaceous Early Albian
Membranosphaera sp.III Early Ypresian Early Ypresian
Membranosphaera sp.B De C.,1975 Late Maastrichtian Early Ypresian
Membranosphaera sp.B Danian Ypresian
Membranosphaera sp.A De C.,1975 Danian Danian
Membranosphaera sp.A Dave.,1979 Aptian Santonian
Membranosphaera sp.A Aptian Albian
Membranosphaera sp. Drug.,1967 Late Maastrichtian Danian
Membranosphaera sp. Deak & Comb.,1967 Early Albian Early Cenomanian
Membranosphaera sp Mesozoic Early Oligocene
Membranosphaera rugosa Early Cretaceous Early Albian
Membranosphaera romaensis Early Cretaceous Albian
Membranosphaera norvickii Aptian Albian
Membranosphaera maastrichtica Cretaceous Eocene
Membranosphaera granulata Aptian Early Turonian