Trinucleioidea

Trinucleioidea
Temporal range:
Cryptolithoides ulrichi, a trilobite in the family Trinucleidae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: †Artiopoda
Class: †Trilobita
Order: †Asaphida
Superfamily: †Trinucleioidea
Families

See text

Trinucleioidea is a superfamily of trilobites. Traditionally placed within the Asaphida, it is now sometimes considered its own order, Trinucleida.

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