Type
Sub-age
Age range
40.145–39.698 Ma
C18n.1r
C18n.2n
C18r
40.1640.1440.1240.1040.0840.0640.0440.0240.0039.9839.9639.9439.9239.9039.8839.8639.8439.8239.8039.7839.7639.7439.7239.7039.68