Antygomonas Nebelsick, 1990 (basis of record)
Antygomonidae Adrianov & Malakhov, 1994 accepted as Semnoderidae Remane, 1929 (basis of record)
Campyloderes Zelinka, 1907 (basis of record)
Centroderes Zelinka, 1907 (basis of record)
Centroderidae Zelinka, 1896 (basis of record)
Cephalorhyncha (basis of record)
Condyloderes Higgins, 1969 (basis of record)
Cyclorhagida (basis of record)
Echinoderes Claparède, 1863 (basis of record)
Echinoderes angustus Higgins & Kristensen, 1988 (basis of record)
Echinoderes arlis Higgins, 1966 (basis of record)
Echinoderes eximus Higgins & Kristensen, 1988 (basis of record)
Echinoderes peterseni Higgins & Kristensen, 1988 (basis of record)
Echinoderidae Carus, 1885 (basis of record)
Homalorhagida accepted as Allomalorhagida (basis of record)
Kinorhyncha (basis of record)
Loricifera (additional source)
Nanaloricida (basis of record)
Nanaloricidae Kristensen, 1983 (basis of record)
Neocentrophyidae Higgins, 1969 (basis of record)
Priapulida (basis of record)
Priapulidae Gosse, 1855 (basis of record)
Priapulopsis Koren & Danielssen, 1875 (basis of record)
Priapulopsis bicaudatus (Danielssen, 1869) (basis of record)
Priapulus Lamarck, 1816 (basis of record)
Priapulus abyssorum Menzies, 1959 (basis of record)
Priapulus caudatus Lamarck, 1816 (basis of record)
Pycnophyes Zelinka, 1907 (basis of record)
Pycnophyidae Zelinka, 1896 (basis of record)
Semnoderes Zelinka, 1907 (basis of record)
Semnoderidae Remane, 1929 (basis of record)

Arctic Ocean for Echinoderes angustus Higgins & Kristensen, 1988 
Arctic Ocean for Echinoderes peterseni Higgins & Kristensen, 1988 
Arctic Ocean for Priapulopsis bicaudatus (Danielssen, 1869) 
Arctic Ocean for Priapulus caudatus Lamarck, 1816 
European waters (ERMS scope) for Echinoderes angustus Higgins & Kristensen, 1988 
European waters (ERMS scope) for Echinoderes peterseni Higgins & Kristensen, 1988 
European waters (ERMS scope) for Priapulopsis bicaudatus (Danielssen, 1869) 
European waters (ERMS scope) for Priapulus abyssorum Menzies, 1959 
European waters (ERMS scope) for Priapulus caudatus Lamarck, 1816 

 Distribution

 for Campyloderes adherens Nyholm, 1947

E North Atlantic [details]

 Distribution

 for Centroderes eisigii Zelinka, 1928

Mediterranean [details]

 Distribution

 for Maccabeus tentaculatus Por, 1973

Mediterranean [details]

 Distribution

 for Paracentrophyes quadridentatus (Zelinka, 1928)

Mediterranean, Baltic Sea? [details]

 Habitat

 for Halicryptus spinulosus von Siebold, 1849

coastal to slope, also brackish & hypersaline [details]

 Habitat

 for Priapulopsis bicaudatus (Danielssen, 1869)

shelf to deep sea [details]

 Habitat

 for Priapulus abyssorum Menzies, 1959

abyssal [details]

 Habitat

 for Priapulus caudatus Lamarck, 1816

coastal to deep sea [details]