  |
Virtual Silurian Reef - http://www.mpm.edu/collections/learn/reef/
Milwaukee Public Museum provides information on Silurian reefs and the organisms that lived among the coral, focussing on the reefs found in Wisconsin. |
  |
Palaeos Invertebrates: Cnidaria: Rugosa - http://www.palaeos.com/Invertebrates/Cnidaria/Rugosa.htm
An overview of the horn corals, an important group of Paleozoic organisms, their classification and evolution with an illustration of what a Middle Devonian reef might have looked like. |
  |
Rugose Coral - http://www.ammonite.free-online.co.uk/zaph.htm
Photographs of Zaphrentis sp. and Canania cylindrica which are commonly found on beaches among the pebbles. |
  |
Jurassic Coral - http://www.ammonite.free-online.co.uk/brcoral.htm
Photograph of a chunk of fossilised Isastraea sp. found on the beach in Scotland. |
  |
Silurian Corals - http://www.ammonite.free-online.co.uk/favo.htm
Photographs of Favosites gothlandicus, Halysites and Tryplasma sp. from Wenlock Edge, England. |