suspension feeders live on the margin of the summit platform. Genetic differences between individuals of a given species which live on the top and these which live at the foot of the guyot have been noted. Some ostracods found on Horizon Guyot such as Cytherelloidea appear to have evolved from Cretaceous shallow water species as the seamount sank into colder waters. Notes References Sources External links NOAA videos Seamounts of the Pacific Ocean Cretaceous volcanoes Guyots