Editing Rhizocephala (section)

==Phylogeny==

The Rhizocephala have not so far been found as fossils.<ref name="Morris 1981">{{cite journal |last=Morris |first=S. Conway |author-link=S. Conway Morris |title=Parasites and the fossil record |journal=Parasitology |publisher=Cambridge University Press |volume=82 |issue=3 |year=1981 |doi=10.1017/s0031182000067020 |pages=489–509}}</ref> 

=== External ===

The following [[cladogram]] shows the [[Phylogenetics|phylogenetic]] relationships of the Cirripedia within [[Thecostraca]] as of 2021.<ref name="Chan2021"/><!--<ref name="Perez-Losada Hoeg Crandall 2012 pp. 430–442">{{cite journal |last=Perez-Losada |first=M. |last2=Hoeg |first2=J. T. |last3=Crandall |first3=K. A. |title=Deep Phylogeny and Character Evolution in Thecostraca (Crustacea: Maxillopoda) |journal=Integrative and Comparative Biology |volume=52 |issue=3 |date=2012-09-01 |doi=10.1093/icb/ics051 |pages=430–442}}</ref>-->

{{clade
|label1=[[Thecostraca]]
|1={{clade
   |1=[[Facetotecta]]
   |2={{clade
      |1=[[Ascothoracida]]
      |label2=[[Cirripedia]]
      |sublabel2=barnacles
      |2={{clade
         |1=[[Acrothoracica]]
         |2={{clade
            |sublabel1=''sessile''
            |1=[[Thoracica]] (stalked and acorn barnacles)
            |sublabel2=''parasitic''
            |2='''Rhizocephala'''
            }}
         }}
      }}
   }}
}}

=== Internal ===

The following cladogram summarizes the internal relationships of Rhizocephala as of 2020,<ref name="JensHoeg"/> as well as the number of species in each family. The tree is not fully resolved.<ref name=Chan2021/>

{{clade
|label1='''Rhizocephala'''
|1={{clade
   |1=[[Triangulidae]] (4)
   |2={{clade
      |1={{clade
         |label1=''"[[Akentrogonida]]"''
         |sublabel1=''in part''
         |1=[[Mycetomorphidae]] (2)
         |2=[[Peltogastridae]] (47)
         }}
      |2={{clade
         |1=[[Peltogasterellidae]] (10)
         |2={{clade
            |1=[[Polyascidae]] (8)
            |2={{clade
               |label1=''"[[Akentrogonida]]"''
               |sublabel1=''in part''
               |1={{clade
                  |1=[[Clistosaccidae]] (2)
                  |2=[[Polysaccidae]] (2)
                  |3=[[Thompsoniidae]] (24)
                  |4={{clade
                     |1=[[Pirusaccidae]] (1)
                     |2=[[Duplorbidae]] (5)
                     |3=[[Chthamalophilidae]] (4)
                     }}
                  }}
               }}
            }}
         |3={{clade
            |1=[[Parthenopeidae]] (3)
            |2=[[Sacculinidae]] (177)
            }}
         }}
      }}
   }}
}}