Children (29 direct children, 79 direct and indirect children):
Pachnodus
(tree size 15)
Rachis albers, 1850
(tree size 4)
Rhachis
Rhachistia
(tree size 30)
Darwininitium
(tree size 1)
Gittenedouardia
Achatinelloides
Altenaia
Archeorachis
Cerastus
Conulinus
Eorrhachis
Euryptyxis
Helenopachnodus
Hoqia
Limicena
Microscintilla
Nesiocerastus
Nesobia
Ovella
Paracerastus
Passamaella
Petraeocerastus
Pleurorhachis
Polychordia
Rachisellus
Rachispeculum
Rhachidina
Soqena
Zebrinops