Nektaspida

Nektaspida; Temporal range:
	Naraoia compacta fossils with preserved appendages
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	†Trilobitomorpha
Order:	†Nektaspida; Raymond, 1920
Families
	†Emucarididae; †Liwiidae; †Naraoiidae; †Petalopleura?; †Buenaspis; †Campanamuta?; †Panlongia?; †Phytophylaspis?; †Saperion?; †Tegopelte?;

Nektaspida (also called Naraoiida, Nektaspia and Nectaspida) is an extinct order of non-mineralised artiopodan arthropods. They are known from the mid-Cambrian to the upper Silurian. Originally classified as trilobites, which they superficially resemble, they are now placed as close relatives as members of the Trilobitomorpha within Artiopoda. The order is divided into three major families; Emucarididae, Liwiidae, and Naraoiidae.

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Nektaspida Temporal range:

Naraoia compacta fossils with preserved appendages
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	†Trilobitomorpha
Order:	†Nektaspida Raymond, 1920
Families^[1]
†Emucarididae †Liwiidae †Naraoiidae †Petalopleura? †Buenaspis †Campanamuta? †Panlongia? †Phytophylaspis? †Saperion? †Tegopelte?