Glyphocyphidae is an extinct family of sea urchins in the class Echinoidea. These slow-moving low-level epifaunal grazers lived from the Cretaceous to the Paleogene periods (136.4 to 48.6 Ma).
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0