Glyphocyphidae

Glyphocyphidae is an extinct family of sea urchins in the class Echinoidea.

Glyphocyphidae Temporal range: Cretaceous–Paleogene PreꞒ Ꞓ O S D C P T J K Pg N [1]
Echinopsis from Sudan, perforated specimen to be threaded. On display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Superorder:	Echinacea
Order:	Camarodonta
Family:	Glyphocyphidae P. M. Duncan 1889

These slow-moving low-level epifaunal grazers lived from the Cretaceous to the Paleogene periods (136.4 to 48.6 Ma).[1]

Genera

• Ambipleurus Lambert, 1932
• Arachniopleurus Duncan & Sladen, 1882
• Dictyopleurus Duncan & Sladen, 1882
• Echinopsis
• Glyphocyphus
• Hemidiadema
• Rachiosoma
• Rhabdopleurus Cotteau, 1893

[2]

References

1. The Paleobiology Database
2. Biolib