Hindeodus
(tree size 1)
Spathognathodontidae
(tree size 4)
Sweetognathidae
(tree size 1)
Gondolellidae
(tree size 12)
Ellisoniidae
(tree size 3)
Foliella
Anchignathodontidae
Idiognathodontidae
(tree size 3)
Kockelellidae
(tree size 2)
Elictognathidae
Pterospathodontidae
(tree size 2)
Gnathodontidae
Microzarkodina
Ozarkodinina
(tree size 20)
Cryptotaxidae
(tree size 1)
Gondolelloidea
Palmatolepididae
Eognathodontidae