Class Trilobita Superfamily Agnostoidea | Order Agnostida Rank Family | |
Similar Agnostina, Agnostidae, Eodiscina, Pagetia, Lejopyge laevigata | ||
Ammagnostidae is a family of trilobites in the suborder Agnostina, small, eyeless, isopygous trilobites with a thorax consisting of 2 segments only. Four genera have been assigned to it:
They lived during the late Cambrian period to the Ordovician period.
References
Ammagnostidae Wikipedia(Text) CC BY-SA