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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
Mollusca (Molluscs)
Gastropoda (Gastropod)
Heterobranchia
Euthyneura
Tectipleura
Eupulmonata
Stylommatophora
Helicina (Helicina (subordo))
Helicoidei
Helicoidea
Helicidae
Ariantinae

Thiessea (27992020)

Children (16 direct children, 18 direct and indirect children):

Thiessea hymetti

Thiessea matrella

Thiessea melpomene

Thiessea nympha

Thiessea pieperi

Thiessea polyhymnia

Thiessea posthuma

Thiessea sphaeriostoma

Thiessea valkanovi

Thiessea amorgia (tree size 2)

Thiessea arcadica

Thiessea bacchica

Thiessea cyclolabris

Thiessea euboeae

Thiessea fuchsiana

Thiessea heldreichi