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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)
Ecdysozoa (Ecdysozoan)
Panarthropoda
Tactopoda
Arthropoda (Arthropod)
Mandibulata
Tracheata
Uniramia
Pancrustacea
Hexapoda (Hexapods)
Insect (Insects)
Dicondylia
Pterygota (Pterygote)
Metapterygota
Neoptera
Eumetabola
Endopterygota
Coleoptera (Beetles)
Polyphaga (Polyphagans)
Elateriformia
Byrrhoidea (Pill beetles and allies)
Psephenidae (Water pennies)

Psephenus (14932602)

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

Psephenus haldemani

Psephenus palpalis

Psephenus herricki

Psephenus oresbius

Psephenus usingeri

Psephenus robacki

Psephenus texanus

Psephenus montanus

Psephenus arizonensis

Psephenus murvoshi

Psephenus falli

Psephenus minckleyi