Murrayonida | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Porifera |
Class: | Calcarea |
Subclass: | Calcinea |
Order: | Murrayonida Vacelet, 1981 |
Families | |
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The Murrayonida are an order of sea sponges in the subclass Calcinea.
The order consists of four known species, in three families:
Family Murrayonidae Dendy & Row, 1913
Family Lelapiellidae Borojevic, Boury-Esnault & Vacelet, 1990
Family Paramurrayonidae Vacelet, 1967
Murrayonida are distinguished from other Calcinea by having a reinforced skeleton; like another line of Calcinea, the Leucettidae, but unlike most other Calcinea, the Murrayonida sponges also have a cortex covering the cormus and a leuconoid aquiferous system.[2]