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Protomonaxonida
Protomonaxonida is an extinct order of sea sponges. It is a paraphyletic group gathering the most ancient species from the Burgess Shale to modern sponges. Families and genera * Family †Choiidae Laubenfels, 1925 ** Genus †'' Allantospongia'' Rigby & Hou, 1995 ** Genus †'' Choia'' Walcott, 1920 ** Genus †'' Choiaella'' Rigby & Hou, 1995 ** Genus †'' Lenica'' Goryanskiy, 1977 * Family †Halichondritidae Rigby, 1986 ** Genus †'' Halichondrites'' Walcott, 1920 ** Genus †'' Pohlispongia'' Rigby & von Bitter, 2005 * Family †Hamptoniidae De Laubenfels, 1955 ** Genus †'' Hamptonia'' Walcott, 1920 ** Genus †'' Hamptoniella'' Rigby & Collins, 2004 * Family †Hazeliidae De Laubenfels, 1955 ** Genus †'' Crumillospongia'' Rigby, 1986 ** Genus †'' Falospongia'' Rigby, 1986 ** Genus †'' Hazelia'' Walcott, 1920 * Family †Leptomitidae De Laubenfels, 1955 ** Genus †'' Leptomitus'' Walcott, 1886 ** Genus †'' Paraleptomitella'' Chen et al., 1989 ** Genus â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Choiaella
''Choiaella'' is an extinct genus of sea sponge ranging from the Chengjiang lagerstatten until the Lower Silurian. It is closely related to the genera ''Choia'' and ''Allantospongia'', which the Chengjiang fauna species ''C. radiata'' coexisted sympatrically with. The species ''C. scotica'' is known from the Caradoc-aged fine sandstone of Wallace's Cast, Southern Uplands of Scotland. The Silurian species has not been formally named. References Maotianshan shales fossils Protomonaxonida Silurian extinctions Cambrian first appearances Prehistoric sponge genera Fossil taxa described in 1995 Paleozoic sponges {{paleo-invertebrate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |