Eogunnarites
(tree size 2)
Hulenites
Moffitites
(tree size 2)
Marshallites
(tree size 3)
Eomarshallites
(tree size 2)
Holcodiscoides
Wellmanites
Yeharites
Mikasaites
Yakushiceras
Maccarthyites
Protokossmaticeras
Eomadrasites