Отряд Пентамериды Order Pentamerida Schuchert & Cooper, 1931.?Lower Cambrian, Middle Cambrian–Upper Devonian.
В среднем палеозое шесть надсемейств в двух подотрядах.
Superorder Syntrophiidina Ulrich & Cooper, 1936. ?Lower Cambrian, Middle Cambrian–Lower Devonian.
Superfamily Porambonitoidea Davidson, 1853. ?Lower Cambrian, Middle Cambrian–lower Silurian.
Superfamily Camerelloidea Hall & Clarke, 1895. Lower Ordovician–Lower Devonian.
Superorder Pentameridina Schuchert & Cooper, 1931. Upper Ordovician–Upper Devonian.
Superfamily Pentameroidea M’Coy, 1844. Upper Ordovician–upper Silurian.
Superfamily Stricklandioidea Schuchert & Cooper, 1931. lower Silurian–upper Silurian.
Superfamily Gypiduloidea Schuchert & LeVene, 1929. lower Silurian–Upper Devonian.
Superfamily Clorindoidea Rzhonsnitskaia, 1956. upper Silurian–Middle Devonian.