Atrypida

Atrypida is an extinct order of rhynchonelliform brachiopods. They first appeared in middle Ordovician and survived the Ordovician-Silurian extinction, becoming the dominant brachiopods of the Silurian alongside the order Pentamerida. They would survive into the Late Devonian before going extinct at the end of the Frasnian (Late Devonian).

Atrypida Temporal range:
Atrypa reticularis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Brachiopoda
Class:	Rhynchonellata
Order:	†Atrypida
Families
†Atrypidae †Atrypinidae †Atrypoidea †Carinatinidae †Glassiidae †Karpinskiidae †Kellerellidae †Lissatrypidae †Palaferellidae †Punctatrypidae †Tuvaellidae †Zygospiridae