Genus Alterbia

Species total:
45
Age range:
141 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Alterbia bakeri Early Santonian Early Eocene
Alterbia Aptian Early Tertiary
Alterbia microgranulata Paleocene Middle Eocene
Alterbia recticornis Turonian Middle Eocene
Alterbia ambigua Cenomanian Middle Eocene
Alterbia bicellula Early Eocene Middle Eocene
Alterbia earnleyensis Early Eocene Middle Eocene
Alterbia ovalis Turonian Middle Eocene
Alterbia bellula Early Eocene Late Eocene
Alterbia distincta Early Tertiary Early Oligocene
Alterbia puyangensis Early Tertiary Middle Miocene
Alterbia asymmetrica Middle Albian Quaternary
Alterbia polymorpha Maastrichtian Maastrichtian
Alterbia dilwynensis Maastrichtian Maastrichtian
Alterbia ectorugosa Late Eocene Late Eocene
Alterbia xinjiangensis Paleocene Paleocene
Alterbia magnifica Eocene Eocene