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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Spiralia (Spiralians)
Lophotrochozoa
Brachiozoa (Phoronozoa)
Brachiopoda (Lamp shell)
Linguliformea
Lingulata
Acrotretida

Acrotretoidea (21349783)

Children (8 direct children, 12 direct and indirect children):

Acrotretidae (tree size 2)

Ephippelasmatidae

Scaphelasmatidae

Torynelasmatidae (tree size 2)

Ceratretidae

Eoconulidae

Biernatidae

Curticiidae