Calcaronea

Baerida is an order of sea sponges in the subclass of Calcaronea, first described in 2000 by Radovan Borojevic, Nicole Boury-Esnault and Jean Vacelet. Baerida contains four families; two of these families (Lepidoleuconidae and Petrobionidae) were formerly placed within the order Lithonida.

Baeriidae is a family of calcareous sponges in the class Calcarea. It was named by Borojevic, Boury-Esnault, and Vacelet in 2000. The type genus is Baeria Miklucho-Maclay, 1870, by original designation, though Baeria is now considered a junior synonym of Leuconia Grant, 1833.

Leuconia is a genus of calcareous sponges in the family Baeriidae. It was described by English anatomist and zoologist Robert Edmond Grant in 1833.

Calcaronea is a subclass of sea sponges in the class Calcarea. They are Calcarea with the triactines and the basal system of tetractines sagittal (i.e. the rays of the spicule make unequal angles with each other), exceptionally regular. In ontogeny the first spicules to be secreted are diactines. Choanocytes are apinucleate. Calcaronea have amphiblastula larvae

thumb | right | alt=A composite image showing microscopic details of a Trichogypsia sponge specimen from the Seychelles, including a cross-section, surface overview, bouquet cortical diactines, and skeletal details. | Microscopic views of Trichogypsia specimen (slide ZMA.POR.P1616) from the Seychelles. (a) Cross-section; (b) Surface overview; (c) Detail of bouquet cortical diactines; (d) Cross-section of peripheral and choanosomal skeleton; (e) Detail of choanosomal skeleton. Trichogypsiidae is a family of sponges in the class Calcarea.

Trichogypsia is a genus of calcareous sponges in the order Baerida.

Plectroninia is a genus of sponges belonging to the family Minchinellidae.

Minchinellidae is a family of calcareous sponges, members of the class Calcarea. It is the only family in the monotypic order Lithonida. The families Petrobionidae (genus Petrobiona) and Lepidoleuconidae (genus Lepidoleucon) have also sometimes been placed within Lithonida, though more recently they have been moved to the order Baerida. Thanks to their hypercalcified structure, minchinellids have a fossil record reaching as far back as the Jurassic Period.

Eilhardia is a genus of calcareous sponges in the family Baeriidae. It contains one species, Eilhardia schulzei.

REDIRECT Lepidoleucon

Leucopsila is a genus of poriferans in the family Baeriidae, was originally described as Leuconia stylifera in 1870. The genus was described by Dendy & Row in 1913.

Leucyssa is a genus of calcareous sponges in the family Trichogypsiidae. It consists of one species, Leucyssa spongilla.

Lamontia is a genus of calcareous sponges in the family Baeriidae. It consists of one species, Lamontia zona Kirk, 1895. The genus and species were described by New Zealand biologist Harry Borrer Kirk in 1895. The type locality of Lamontia zona is Cook Strait, New Zealand.

Kuarrhaphis is a genus of calcareous sponges in the family Trichogypsiidae. It consists of one species, Kuarrhaphis cretacea.

Lepidoleucon is genus of calcareous sponges in the order Baerida. It is the only genus in the monotypic family Lepidoleuconidae, and consists of a single species, Lepidoleucon inflatum.

genus of sponges (fossil)

Petrostroma is a genus of calcareous sponges belonging to the family Minchinellidae.