Invertebrate Paleontology Image Gallery (Popularity: ): Fossils from the Yale Peabody Museum. Sponge Reefs on the Continental Shelf (Popularity: ): Canadian Geological Survey program to study hexactinellid reefs. Paleobiology Laboratory at IUPUI (Popularity: ): Links to research on bryozoans. World Brach Net (Popularity: ): Brachiopod research information, and information about the specialists working on them, the brachiopodologists. The British and Irish Graptolite Group (Popularity: ): Information and topical news about graptolites, and those scientists working on graptolites in the UK and Ireland Graptolite. home 3.3 (Popularity: ): Piotr Mierzejewski: research interests, abstracts of recent graptolite publications. Graptolite Growth (Popularity: ): Note on the mathematical model and simulation of dendroid graptolite growth. Graptolite Locomotion (Popularity: ): A new model for graptoloid locomotion by M.J. Melchin and M.E. DeMont. Denis Bates Homepage (Popularity: ): (with Dr Nancy Kirk). Research interests, morphology of retiolitids, ultrastructure, mode of life, evolution. Permian Pterobranch (Popularity: ): First find of a Permian rhabdopleurid (Graptolithoidea).