Echinarachnius

Phylum:Echinodermata

Class:Echinoidea

Superorder:Neognathostomata

Order:Clypeasteroida

Echinarachnius
Echnarachnius parma
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Superorder:	Neognathostomata
Order:	Clypeasteroida
Family:	Echinarachniidae
Genus:	Echinarachnius Gray, 1825
Synonyms
Echinarachinus (misspelling) Echinarachnius (Echinarachnius) Gray, 1825 (subgeneric subdivision not accepted by scientific community) Phelsumaster Lambert & Thiéry, 1914 (objective junior synonym) Phelsumia Pomel, 1883 (junior homonym of Phelsumia Gray, 1840 (Reptilia))

Echinarachnius is a genus of sand dollars, belonging to the family Echinarachniidae.^[1]

Species of Echinarachnius have been around since the Pliocene epoch.