They are also among the most morphologically conservative of the brachiopods, having lasted from their earliest appearance to the present with very little change in shape.

Shells of living specimens found today in the waters around Japan are almost identical to ancient Cambrian fossils.

Lingulata shells are composed of a combination of calcium phosphate, protein and chitin.

The Lingulata are inarticulate brachiopods, so named for the simplicity of their hinge mechanism.

It is primarily an Indo-Pacific genus that is harvested for human consumption in Japan and Australia.