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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: †Trilobitomorpha
Classis: Trilobita
Ordo: Phacopida
Subordo: Phacopina
Superfamilia: Acastoidea
Familiae: Acastidae - Calmoniidae

Name

Acastoidea
References

Acastoidea is a superfamily of trilobites from the order Phacopida, suborder Phacopina. This superfamily is divided into two families, Acastidae and Calmoniidae.[1] This superfamily is distinguishable from the Phacopidae in that eyes are closer to the glabella and that the glabella has lobes, unlike the genera in Phacopidae.
References

S. M. Gon III. "Order Phacopida". Archived from the original on 6 January 2011. Retrieved December 4, 2010.

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