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Pirania
''Pirania'' is an extinct genus of sea sponge known from the Middle Cambrian Burgess Shale and the Ordovician Fezouata formation. It is named after Mount St. Piran, a mountain situated in the Bow River Valley in Banff National Park, Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter .... It was first described in 1920 by Charles Doolittle Walcott. 198 specimens of ''Pirania'' are known from the Greater Phyllopod bed, where they comprise 0.38% of the community. References External links * Burgess Shale fossils Protomonaxonida Burgess Shale sponges Prehistoric sponge genera Cambrian first appearances Middle Ordovician extinctions Taxa named by Charles Doolittle Walcott Fossil taxa described in 1920 {{paleo-sponge-stub Cambrian genus extinctions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 †'' Warei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |