PLACOSPONGIIDAE Gray, 1867
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https://doi.org/ 10.5281/zenodo.5400184 |
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https://doi.org/10.5281/zenodo.5476234 |
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https://treatment.plazi.org/id/8B319360-E71A-FFCF-FABA-FDB23D8BCEED |
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Marcus |
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PLACOSPONGIIDAE Gray, 1867 |
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Family PLACOSPONGIIDAE Gray, 1867 View in CoL
DIAGNOSIS (revised). — Hadromerida with tylostyles as megascleres and selenasters or amphiaster-like sterrasters (amphinolasters) as primary microscleres forming polygonal cortical crusts. Cortical plates separated by contractile ectosomal pore grooves bearing ostia and oscula. Tylostyles in tracts radiating from the base toward the surface and supporting the margins of the cortical plates. Accessory microscleres include spirasters, spherasters, and spherules.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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