Genus Alterbia

Species total:
45
Age range:
141 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Alterbia distincta Early Tertiary Early Oligocene
Alterbia earnleyensis Early Eocene Middle Eocene
Alterbia ectorugosa Late Eocene Late Eocene
Alterbia eyrensis Albian Cenomanian
Alterbia foliacea Turonian Campanian
Alterbia ingramii Turonian Turonian
Alterbia jurassica Nd Nd
Alterbia macrocysta Campanian Campanian
Alterbia magnifica Eocene Eocene
Alterbia mauthei Nd Nd
Alterbia microgranulata Paleocene Middle Eocene
Alterbia minor Cenomanian Teurian
Alterbia montanaensis Early Campanian Maestrichtian
Alterbia obscura Cenomanian Danian
Alterbia ovalis Turonian Middle Eocene
Alterbia pellucida Early Santonian Early Eocene
Alterbia pentaradiata Early Teurian Early Waipawan