Editing Apicomplexa (section)

===Marosporida===
The class Marosporida <small>Mathur, Kristmundsson, Gestal, Freeman, and Keeling 2020</small> is a newly recognized lineage of apicomplexans that is sister to the Coccidia and Hematozoa. It is defined as a phylogenetic [[clade]] containing ''Aggregata octopiana'' <small>Frenzel 1885</small>, ''[[Merocystis kathae]]'' <small>Dakin, 1911</small> (both Aggregatidae, originally coccidians), ''[[Rhytidocystis]]'' sp. 1 and ''Rhytidocystis'' sp. 2 <small>Janouškovec et al. 2019</small> ([[Rhytidocystidae]] <small>Levine, 1979</small>, originally coccidians, [[Agamococcidiorida]]), and ''Margolisiella islandica'' <small>Kristmundsson et al. 2011</small> (closely related to Rhytidocystidae). Marosporida infect marine invertebrates. Members of this clade retain [[plastid]] genomes and the canonical apicomplexan plastid metabolism. However, marosporidians have the most reduced apicoplast genomes sequenced to date, lack canonical plastidial RNA polymerase and so provide new insights into reductive organelle evolution.<ref name="Mathur_2021">{{cite journal |last1=Mathur |first1=Varsha |last2=Kwong |first2=Waldan K. |last3=Husnik |first3=Filip |last4=Irwin |first4=Nicholas A. T. |last5=Kristmundsson |first5=Árni |last6=Gestal |first6=Camino |last7=Freeman |first7=Mark |last8=Keeling |first8=Patrick J |title=Phylogenomics Identifies a New Major Subgroup of Apicomplexans, Marosporida ''class nov''., with Extreme Apicoplast Genome Reduction |journal=Genome Biology and Evolution |date=18 November 2020 |volume=13 |issue=2: evaa244 |doi=10.1093/gbe/evaa244 |url= |publisher=Oxford University Press |pmid=33566096 |pmc=7875001 |issn=1759-6653}}</ref>