Polystomurum

Polystomurum is a Devonian genus from Siberia, Russia (then the Soviet Union). It was initially described by Nestor Novojilov in 1958 as a eurypterid with affinities to Marsupipterus inside the family Stylonuridae. Nowadays, it is classified as incertae sedis inside Euchelicerata.^[1][2]

Polystomurum Temporal range: Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	Arachnomorpha
Subphylum:	Chelicerata
Clade:	Euchelicerata (?)
Genus:	†Polystomurum Novojilov, 1958
Type species
†Polystomurum stormeri Novojilov, 1958