Order Murrayonida Vacelet, 1981
Murrayonida Vacelet (Calcarea, Calcinea) contains three families, three valid Recent genera, and only three Recent species from coral reef caves and deep fore-reefs, mostly from the tropical Indo-Pacific region, with affinities to a larger ancient group of fossil taxa. The order is characterized among Calcinea by a reinforced skeleton of a calcareous aspicular network, or calcareous plates, or spicule tracts generally composed of diapason triactines, reminiscent of the reinforced skeleton of fossil ‘pharetronids’.
KeywordsPorifera Calcarea Calcinea ‘Pharetronids’ Murrayonidae Paramurrayonidae Lelapiellidae Murrayona Paramurrayona Lelapiella
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