Micragnostidae Howell, 1935, Glyptagnostidae Whitehouse, 1936, Rudagnostidae Lermontova, 1951 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:[1][2]

This Agnostida-related article is a stub.