Pseudoniscidae

Pseudoniscidae is an extinct family of synziphosurine chelicerates that lived in the Silurian. Pseudoniscidae is classified inside the clade Planaterga, alongside Bunodidae and Dekatriata (chasmataspidids, eurypterids and arachnids).^[1] Pseudoniscidae is composed by two genera, Cyamocephalus and Pseudoniscus (the type genus).^[2][1][3]

Pseudoniscidae Temporal range: Silurian PreꞒ Ꞓ O S D C P T J K Pg N
Restoration of Pseudoniscus roosevelti and Cyamocephalus loganensis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Clade:	Prosomapoda
Clade:	Planaterga
Family:	†Pseudoniscidae Packard, 1886
Type species
†Pseudoniscus aculeatus Nieszkowski, 1859
Genera
†Cyamocephalus †Pseudoniscus