Linotrigonia
(tree size 10)
Notoscabrotrigonia
(tree size 22)
Pisotrigonia
(tree size 15)
Ptilotrigonia
(tree size 5)
Acanthotrigonia
(tree size 3)
Arabitrigonia
(tree size 3)
Bacatigonia
(tree size 2)
Eufalagonia
(tree size 1)
Eurotrigonia
(tree size 19)
Gabbigonia
(tree size 5)
Haumurigonia
(tree size 7)
Henrywoodsia
(tree size 2)
Incomatiella
(tree size 3)
Kauffmanella
(tree size 2)
Leanzatrigonia
(tree size 1)
Mangyschlakella
(tree size 4)
Metacanthotrigonia
(tree size 14)
Musagonia
(tree size 1)
Noelmorrisia
(tree size 6)
Oistotrigonia
(tree size 27)
Orbigonina
(tree size 3)
Paulckella
(tree size 3)
Praescabrotrigonia
(tree size 12)
Pterotrigonioides
(tree size 2)
Renatoreyesia
(tree size 1)
Rinetrigonia
(tree size 13)
Scabrotrigonia
(tree size 8)
Tamuragonia
(tree size 13)
Tennessiella
(tree size 3)
Ussuritrigonia
(tree size 3)
Yaninella
(tree size 1)