Genus Hystrichosphaeropsis

Species total:
30
Age range:
230 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Hystrichosphaeropsis Mesozoic Cenozoic
Hystrichosphaeropsis arctica Late Oligocene Miocene
Hystrichosphaeropsis borussica Paleocene Miocene
Hystrichosphaeropsis complanata Maastrichtian Middle Miocene
Hystrichosphaeropsis costae Eocene Lutetian
Hystrichosphaeropsis downiei Kimmeridgian Kimmeridgian
Hystrichosphaeropsis forficata Late Campanian Early Maastrichtian
Hystrichosphaeropsis galeata Oxfordian Turonian
Hystrichosphaeropsis irisiae Maastrichtian Late Maastrichtian
Hystrichosphaeropsis jubata Maastrichtian Maastrichtian
Hystrichosphaeropsis minimum Badenian Badenian
Hystrichosphaeropsis nuda Late Cretaceous Late Cretaceous
Hystrichosphaeropsis obscura Early Ypresian Recent
Hystrichosphaeropsis ovatum Nd Nd
Hystrichosphaeropsis ovum Early Cretaceous Sarmatian
Hystrichosphaeropsis perforata Late Campanian Maastrichtian
Hystrichosphaeropsis pontiana Middle Oligocene Early Pliocene