This is a retroactive split - Marthasterias africana was added but there are still a lot of observations of Marthasterias glacialis that were using the sensu lato concept that we're splitting - see https://www.inaturalist.org/flags/389414
Horton T, Kroh A, Ahyong S, Bailly N, Boyko CB, Brandão SN, Gofas S, Hooper JNA et al. (2020). World Register of Marine Species. Available from https://www.marinespecies.org at VLIZ. Accessed 2013-07-25. doi:10.14284/170 (Link)
Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.
https://www.inaturalist.org/atlases/26011 & https://www.inaturalist.org/atlases/26010