Type
Subchron
Age range
166.64–166.56 Ma
Middle Jurassic
Bathonian
M39n.5r
M39n.6n
M39r
166.64166.63166.63166.63166.62166.62166.61166.60166.60166.59166.59166.59166.58166.57166.57166.56166.56