Children (51 direct children, 650 direct and indirect children):
Longimactra
(tree size 2)
Tresus
(tree size 5)
Mulinia
(tree size 20)
Spisula
(tree size 50)
Mactromeris
(tree size 3)
Simomactra
(tree size 5)
Cyclomactra
(tree size 5)
Rangia
(tree size 4)
Rangia (bivalve)
Raeta
(tree size 21)
Mactrotoma
(tree size 18)
Anatina
(tree size 17)
Scissodesma
(tree size 5)
Zenatia
(tree size 4)
Meropesta
(tree size 4)
Oxyperas
(tree size 18)
Mactrellona
(tree size 6)
Mactrella
(tree size 3)
Standella
(tree size 11)
Austromactra
(tree size 3)
Darina
(tree size 4)
Diaphoromactra
(tree size 1)
Heterocardia
(tree size 5)
Harvella
(tree size 5)
Tanysiphon
(tree size 1)
Leptospisula
(tree size 1)
Zenatina
(tree size 1)
Eastonia
(tree size 2)
Barymactra
(tree size 2)
Tumbeziconcha
(tree size 5)
Coelomactra
(tree size 1)
Maorimactra
(tree size 2)
Mactrinae
(tree size 296)
Lutrariinae
(tree size 51)
Zenatiinae
Darininae
Tanysiphoninae
Zenatiopsis
(tree size 1)
Resania
(tree size 3)
Scalpomactra
(tree size 4)
Micromactra
(tree size 2)
Resaniinae
Colorimactra
(tree size 1)
Electomactra
(tree size 2)
Hemimactra
(tree size 2)
Mactrona
(tree size 1)
Nannomactra
Notospisula
Psammophila
Rangianella
(tree size 1)
Spisulona
(tree size 1)
Zenatraria