Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: †Trilobitomorpha
Classis: Trilobita
Ordo: Agnostida
Subordo: Agnostina
Superfamilia: Agnostoidea
Familia: Agnostidae
Subfamiliae: Agnostinae - Ammagnostinae - Glyptagnostinae
Name
Agnostidae M'Coy 1849
Agnostidae is a family of Agnostida trilobites. Like all Agnostina, they were eyeless and bore only two thoracic segments. They ranged in benthic waters across the globe from 508 to 461 million years ago, containing the following genera, among others:[1][2]
Acmarhachis
Agnostus
Aistagnostus
Anglagnostus
Biciragnostus
Connagnostus
Distagnostus
Eolotagnostus
Gymnagnostus
Homagnostus
Idolagnostus
Innitagnostus
Ivshinagnostus
Kymagnostus
Lotagnostus
Micragnostus
Obelagnostus
Oncagnostus
Peronopsis
Phalacroma
Phalagnostus
Quadrahomagnostus
Raragnostus
Semagnostus
Strictagnostus
Trilobagnostus
References
S. M. Gon III. "Order Agnostida". Archived from the original on 6 January 2011. Retrieved January 6, 2011.
Paleobiology Database. "PBDB: Agnostidae". Retrieved December 4, 2011.
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