Children (49 direct children, 946 direct and indirect children):
Anadara
(tree size 127)
Arca
(tree size 415)
Arca (bivalve)
Barbatia
(tree size 112)
Bentharca
(tree size 15)
Bathyarca
(tree size 38)
Senilia
(tree size 1)
Asperarca
(tree size 7)
Scapharca
(tree size 35)
Litharca
(tree size 1)
Samacar
(tree size 4)
Acar
(tree size 39)
Acar (bivalve)
Calloarca
(tree size 15)
Hawaiarca
(tree size 8)
Mimarcaria
(tree size 6)
Xenophorarca
(tree size 4)
Tegillarca
(tree size 9)
Fugleria
(tree size 3)
Destacar
(tree size 1)
Scaphula
(tree size 7)
Vitracar
(tree size 3)
Lunarca
(tree size 3)
Paranadara
(tree size 1)
Trisidos
(tree size 10)
Miratacar
(tree size 2)
Mabellarca
(tree size 6)
Mesocibota
(tree size 4)
Deltaodon
(tree size 2)
Mosambicarca
(tree size 3)
Pugilarca
(tree size 1)
Notogrammatodon
(tree size 1)
Venignia
(tree size 1)
Larkinia
(tree size 2)
Anadarinae
Arcinae
Noetiinae
(tree size 3)
Pectunculinae
Litharcinae
Eonavicula
(tree size 1)
Diluvarca
(tree size 1)
Potiarca
(tree size 2)
Tosarca
(tree size 1)
Tucetonella
Cucullaearca
(tree size 1)
Abarbatia
Imparilarca
(tree size 1)
Kikaiarca
Parallelepipedum
(tree size 1)
Pseudoporterius
Scapharcopsis