Agnostidae

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Image: Agnostus-pisiformis.png

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taxon name: Agnostidae
taxon rank: family
start time: 508000000-
end time: 460000000-

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Agnostidae is a family of Agnostida trilobites. Like all Agnostina, they were eyeless and had only two thoracic segments. These trilobites inhabited benthic waters worldwide from 508 to 461 million years ago. The family includes the following genera, among others: Acmarhachis Agnostus Aistagnostus Anglagnostus Biciragnostus Connagnostus Distagnostus Eolotagnostus Gymnagnostus Homagnostus Idolagnostus Innitagnostus Ivshinagnostus Kymagnostus Lotagnostus Micragnostus Obelagnostus Oncagnostus Phalacroma Phalagnostus Quadrahomagnostus Raragnostus Semagnostus Strictagnostus Trilobagnostus

==References==

Excerpted from Wikipedia’s “Agnostidae” article, available under the CC BY-SA 4.0 licence.