Genus Alterbia

Species total:
45
Age range:
141 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Alterbia amphiata Early Santonian Maastrichtian
Alterbia bakeri Early Santonian Early Eocene
Alterbia macrocysta Campanian Campanian
Alterbia acutula Campanian Danian
Alterbia bicavata Campanian Maastrichtian
Alterbia subtilis Campanian Campanian
Alterbia dictyon Campanian Campanian
Alterbia sp.B Early Campanian Early Campanian
Alterbia montanaensis Early Campanian Maestrichtian
Alterbia curvicornis Campanian Campanian
Alterbia pilosa Campanian Maastrichtian
Alterbia raijae Maastrichtian Maastrichtian
Alterbia dilwynensis Maastrichtian Maastrichtian
Alterbia polymorpha Maastrichtian Maastrichtian
Alterbia distincta Early Tertiary Early Oligocene
Alterbia xinjiangensis Paleocene Paleocene
Alterbia pentaradiata Early Teurian Early Waipawan