Genus Alterbia

Species total:
45
Age range:
141 - 0 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Alterbia pellucida Early Santonian Early Eocene
Alterbia Aptian Early Tertiary
Alterbia ambigua Cenomanian Middle Eocene
Alterbia bicellula Early Eocene Middle Eocene
Alterbia earnleyensis Early Eocene Middle Eocene
Alterbia ovalis Turonian Middle Eocene
Alterbia microgranulata Paleocene Middle Eocene
Alterbia recticornis 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 ingramii Turonian Turonian
Alterbia acribes Early Albian Early Albian
Alterbia raijae Maastrichtian Maastrichtian
Alterbia mauthei Nd Nd
Alterbia rhombohedra Early Paleocene Early Paleocene