Echinoderms

Provides photographs and information on echinoids, or sea urchins, the arrival of regular species in the fossil record in the Cambrian and the appearance of irregular ones in the Jurassic.

Information about echinoderms in Australia including their biology, anatomy, behaviour, reproduction, predators, prey and ecology.

Detailed description of this Devonian crinoid, found in 1971 by P. Lukes, the stratigraphical position of which is uncertain because of lack of conodonts.