Tetractinellida

Tetractinellida is an order of sea sponges belonging to the class Demospongiae. First described in 1876, this order received a new description in 2012 and replaced the two orders Astrophorida and Spirophorida, which then became sub-orders as Astrophorina and Spirophorina.

Families

 * Suborder Astrophorina Sollas, 1887
 * Family Ancorinidae Schmidt, 1870
 * Family Calthropellidae Lendenfeld, 1907
 * Family Corallistidae Sollas, 1888
 * Family Geodiidae Gray, 1867
 * Family Isoraphiniidae Schrammen, 1924
 * Family Macandrewiidae Schrammen, 1924
 * Family Neopeltidae Sollas, 1888
 * Family Pachastrellidae Carter, 1875
 * Family Phymaraphiniidae Schrammen, 1924
 * Family Phymatellidae Schrammen, 1910
 * Family Pleromidae Sollas, 1888
 * Family Theneidae Carter, 1883
 * Family Theonellidae Lendenfeld, 1903
 * Family Thrombidae Sollas, 1888
 * Family Vulcanellidae Cárdenas, Xavier, Reveillaud, Schander & Rapp, 2011
 * Suborder Spirophorina Bergquist & Hogg, 1969
 * Family Azoricidae Sollas, 1888
 * Family Samidae Sollas, 1888
 * Family Scleritodermidae Sollas, 1888
 * Family Siphonidiidae Lendenfeld, 1903
 * Family Spirasigmidae Hallmann, 1912
 * Family Stupendidae Kelly & Cárdenas, 2016
 * Family Tetillidae Sollas, 1886
 * Suborder Thoosina Carballo, Bautista-Guerrero, Cárdenas, Cruz-Barraza, Aguilar-Camacho, 2018
 * Family Thoosidae Cockerell, 1925