Echinarachniidae

Echinarachniidae; Temporal range: Middle Eocene–Present PreꞒ Ꞓ O S D C P T J K Pg N
	An image of Echinarachnius parma, one of the species in this clade.
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Order:	Clypeasteroida
Family:	Echinarachniidae

Echinarachniidae is a family of echinoderms belonging to the order Clypeasteroida.^[1] This clade appeared in the Middle Miocene epoch and is still living today in the North Pacific Ocean (California and Japan) ocean to Northeast Canada and Southern United States.^[2]

References