Spatangidae

== Translingual == === Etymology === Spatangus +‎ -idae. === Proper noun === Spatangidae A taxonomic family within the order Spatangoida – some heart urchins. ==== Hyponyms ==== (family): Maretia, Nacospatangus, Paramaretia, Spatangus (genera) === References === Spatangidae on Wikipedia.Wikipedia Spatangidae on Wikispecies.Wikispecies Category:Spatangidae on Wikimedia Commons.Wikimedia Commons