The progression of the striatum over time from its initial formation until its mature state. The striatum is a region of the forebrain consisting of the caudate nucleus, putamen and fundus striati. [ http://purl.obolibrary.org/obo/go/references/0000021 http://openisbn.com/search.php?q=0878937420&isbn=1/ GOC:cls GOC:dph GOC:jid GOC:dgh ]