Invertebrates

Photographs and information on terebratulids, rhynchonellids and spiriferids.

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.

A free graptolite researcher and a Rosicrucian Frater. Research interests, primarily in sessile graptolites and pterobranchs, and publications.

Stolonoid graptolites discussed as rhabdopleurids.

Back-scattered electron microscopy technique applied to study graptolitic material - BSEM image of Psigraptus.

Photographs and information on Siphonia subglobosa and Siphonia tubulosa and some photomicrographs showing typical tetraclones and one dermal dichotriaene of Siphonia tubulosa.

Photos of trilobites from around the world, as well as a searchable database of over 280 specimens.

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

Provides information on the fossilisation process in bivalves with photographs of a number of specimens from the London clay of the Isle of Sheppey, Kent, UK.

Information on how gastropods become fossilized and photographs of a number of fossil specimens from the London clay of the Isle of Sheppey, Kent, UK.

A pictorial guide to some of the fossil cephalopods that can be found in the State of Utah, mostly Ammonoids, but many other cephalopods are pictured. Pictures of some collecting localities are also included.