Ediacaran
/ɛdɪˈakərən/ /ˌɛdɪəˈkɑːrən/Palaeontology
adjective
Of, relating to, or designating the Ediacara fauna.
noun
1With the. The Ediacaran deposits; the period in which these deposits were laid down.
2An Ediacaran organism.
Origin
1960s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America. From Ediacara + -an.