History, Theory and Methodology of Biological Systematics

For nearly 10 years, David M. Williams and I have been writing about the history and theory of systematics and biogeography. Check out our publications here or our blog. In 2008 we published the Foundations of Systematics and Biogeography (Springer).

For more information, please visit the Systematics and Biogeography blog.

Revising the Order HarpetidaEntomaspis

Higher level systematic studies of the Harpetida are planned across exemplar trilobite groups. Presently not much is known about the monophyly of the Harpetida and its three families, the Harpetidae, Entomaspidae and Harpididae. Further investigations such as character analysis will hopefully resolve this enigmatic group.

If you want to learn more about trilobites, please visit Sam Gon's III Guide to the Orders of Trilobites.

All trilobite images: Copyright Sam Gon III c/o The Nature Conservancy of Hawai‘i,923 Nuuanu Avenue, Honolulu, HI 96817, USA