Goniodiscus may refer to: Goniodiscus, a genus of plants in the family Celastraceae Goniodiscus or Gonyodiscus, a genus of gastropods, synonym of Discus Goniodiscus, a genus of echinoderms in the family Oreasteridae, synonym of Culcita Goniodiscus, an extinct genus of trilobites in the family Calodiscidae, synonym of Calodiscus