2015 researchers could confirm neither the head configuration nor the megacheiran interpretation of the anatomy. Kootenichela has been subsequently suggested
Oelandocaris is an extinct genus of stem-mandibulate, or possibly a megacheiran, within the monotypic family Oelandocarididae. Oelandocaris has a large
in marine environments worldwide from the lower to middle Cambrian. Megacheirans are defined by their possession of uniramous "great appendages", which
between frontal appendages and the original, morphologically distinct megacheiran great appendages is questionable.). They are sclerotized (hardened) and