Echinoidea - Calycina - Diplopodiidae
Alternative spelling: Pseudodiadema
Full reference: E. Desor. 1858. Synopsis des échinides fossiles. Reinwald, Paris 1-490
Parent taxon: Diplopodia according to R. Furon 1935
See also Clark and Twitchell 1915, Cooke 1941, Fell and Pawson 1966 and Sepkoski 2002
Sister taxa: Diplopodia streeruvitzi, Diplopodia taffi
Subtaxa: Pseudodiadema emersoni Pseudodiadema rotulare Pseudodiadema seguini Pseudodiadema silbinense Pseudodiadema texanum
Type: Cidarites pseudodiadema
Distribution:
• Cretaceous of Brazil (1 collection), Egypt (1), France (8), Hungary (1), Spain (1), Switzerland (17), the United Kingdom (2), United States (1: Texas)
• Jurassic of France (3), Germany (1), India (3), Poland (1), Switzerland (2), the United Kingdom (3), United States (1: California)
Total: 46 collections including 64 occurrences