Genus Jansonia

Species total:
7
Age range:
195 - 117 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Jansonia Late Bajocian Late Bajocian
Jansonia jurassica Toarcian Valanginian
Jansonia manifesta Toarcian Kimmeridgian
Jansonia psilata Bajocian Bajocian
Jansonia scarffei Middle Bathonian Late Bathonian
Jansonia sp Jurassic Hauterivian
Jansonia sp. Quat.& Sarj.,1992 Early Tithonian Middle Tithonian