This suggests a long lateral fontanelle on the carapace.
The postero-lateral and posterior margins of the carapace are thin, forming a sharp edge.
Most adults are found on the carapace of the shell attached in pits dissolved between the scutes.
Nevertheless, some carapace morphologies hint at certain modes of life.
All specimens are crushed dorso-ventrally, so the original curvature of the carapace is unknown, but it seems to have been low.
She looks almost as though she has donned a smooth carapace with wrinkles and ambiguous edges airbrushed out.
Left lateral (a) and ventral (b) views of a carapace and anterior view of a left valve (c).
The carapace has a roughly rounded outline and lacks midline or lateral keels.
