Genus Alterbia

Species total:
45
Age range:
141 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Alterbia xinjiangensis Paleocene Paleocene
Alterbia subtilis Campanian Campanian
Alterbia sp.B Early Campanian Early Campanian
Alterbia sp.A Early Cenomanian Santonian
Alterbia sp Middle Albian Early Eocene
Alterbia rhombohedra Early Paleocene Early Paleocene
Alterbia recticornis Turonian Middle Eocene
Alterbia raijae Maastrichtian Maastrichtian
Alterbia puyangensis Early Tertiary Middle Miocene
Alterbia polymorpha Maastrichtian Maastrichtian
Alterbia pilosa Campanian Maastrichtian
Alterbia pentaradiata Early Teurian Early Waipawan
Alterbia pellucida Early Santonian Early Eocene
Alterbia ovalis Turonian Middle Eocene
Alterbia obscura Cenomanian Danian
Alterbia montanaensis Early Campanian Maestrichtian
Alterbia minor Cenomanian Teurian