Ediacaran /ɛdiˈakəɹən/adjective 1noun 1forms 1 adjective1 •Of a geologic period within the Neoproterozoic era from about 620 to 542 million years ago.Swartpuntia (frondlike metazoans) and Ernietta (ribbed saclike metazoans) are part of the Ediacaran fauna. — 2007 noun1 •An organism that lived in the Ediacaran period.Many Ediacarans seem to have lived quiet lives of very limited mobility on the bottom of the sea. — 2016 formsEdiacarans
