Dictyonema (graptolite)

Dictyonema is a genus of dendroid graptolites in the order Dendroidea.

Fossil record

Fossils of Dictyonema are found from the Upper Cambrian to the Devonian. They are known from various localities in Europe, North America, South America, China and Morocco.

Description

These colonial organism are characterized by a conical, net-like structure. The colonies are branched and may vary from almost discoidal to almost cylindrical. They were stationary planktonic suspension feeders.

Species

†Dictyonema macgillivrayi
†Dictyonema pulchellum
†''Dictyonema retiforme''