Echinoidea - Irregularia - Clypeidae
Synonym: Echinopygus d'Orbigny 1856
Full reference: L. Agassiz. 1839. Description des Echinodermes fossiles de la Suisse; première partie, Spatangoides et Clypéasteroides. Mémoires de la Société helvétique des Sciences naturelles 3:1-101
Parent taxon: Clypeidae according to A. P. Larrain and L. Biró-Bagóczky 1985
See also Clark and Twitchell 1915, Kier 1962, Kier 1966, Nisiyama 1968 and Sepkoski 2002
Sister taxa: Astrolampas, Clypeus, Colliclypeus, Pseudopygurus
Subtaxa: Pygurus (Mepygurus) Pygurus (Pyguropsis) Pygurus (Pygurus) Pygurus africanus Pygurus asiaticus Pygurus complanatus
Ecology: epifaunal grazer-deposit feeder
Distribution:
• Cretaceous of Angola (1 collection), Egypt (3), France (32), Portugal (3), Saudi Arabia (5), Switzerland (12), Ukraine (1), the United Arab Emirates (1)
• Jurassic of Chile (1), Germany (1), India (1), Madagascar (6), Poland (7), Saudi Arabia (7), Tunisia (2), United States (1: Texas)
Total: 84 collections including 93 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.