<![CDATA[Acrania]]>The lowest group of Vertebrata, including the amphioxus,
in which no skull exists.

]]>https://definedictionarymeaning.com/topic/48258/acraniaRSS for NodeTue, 23 Jun 2026 10:28:22 GMTTue, 02 May 2017 05:16:07 GMT60<![CDATA[Reply to Acrania on Sat, 15 Jun 2019 15:30:06 GMT]]>Total or partial absence of the skull, occurring as a congenital malformation; an instance of this.

]]>https://definedictionarymeaning.com/post/212159https://definedictionarymeaning.com/post/212159Sat, 15 Jun 2019 15:30:06 GMT