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.^[1]

Tetractinellida
Rhabdastrella globostellata
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Porifera
Class:	Demospongiae
Subclass:	Heteroscleromorpha
Order:	Tetractinellida Marshall, 1876
Suborders
Astrophorina Spirophorina Thoosina
Synonyms
List Ancorinida Choristida Craniellida Dicranocladina Megamorina Poecillastrida Rhizomorina Tetracladina

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