Los Gnathostomulida son un embrancament de vèrms marins intersticials. Un centenat d'espècias es conuegut. Son incluses dins lo superembrancament dels Gnathifera.
Classificacion
Classa Bursovaginoidea Sterrer, 1972 Òdre Conophoralia Sterrer, 1972 Familha Austrognathiidae Sterrer, 1972 Austrognatharia Sterrer, 1971 Austrognathia Sterrer, 1965 Triplignathia Sterrer, 1991 Òdre Scleroperalia Sterrer, 1972 Familha Agnathiellidae Sterrer, 1972 Agnathiella Sterrer, 1971 Paragnathiella Sterrer, 1997 Familha Clausognathiidae Sterrer, 1972 Clausognathia Sterrer, 1992 Familha Gnathostomariidae Sterrer, 1972 Gnathostomaria Ax, 1956 Familha Gnathostomulidae Sterrer, 1972 Chirognathia Sterrer & Sørensen 2006 Corculognathia Ehlers & Ehlers, 1973 Gnathostomula Ax, 1956 Ratugnathia Sterrer, 1991 Semaeognathia Riedl 1970 Familha Mesognathariidae Sterrer, 1972 Labidognathia Riedl 1970 Mesognatharia Sterrer, 1966 Tenuignathia Sterrer, 1976 Familha Onychognathiidae Sterrer, 1972 Goannagnathia Sterrer, 2001 Nanognathia Sterrer, 1972 Onychognathia Riedl, 1971 Valvognathia Kristensen & Norrevang, 1978 Vampyrognathia Sterrer, 1998 Familha Paucidentulidae Sterrer, 1972 Paucidentula Sterrer, 1998 Familha Problognathiidae Sterrer & Farris, 1975 Problognathia Sterrer & Farris, 1975 Familha Rastrognathiidae Kristensen & Norrevang, 1977 Rastrognathia Kristensen & Norrevang, 1977 Classa Filospermoidea Sterrer, 1972 Òdre Filospermoida Sterrer, 1972 Familha Haplognathiidae Sterrer, 1972 Haplognathia Sterrer, 1970 Familha Pterognathiidae Sterrer, 1972 Cosmognathia Sterrer, 1991 Pterognathia Sterrer, 1966
Filogenia
Ligams extèrnes ITIS Gnathostomulida Sterrer, 1972
Referéncias Ax : Die Gnathostomulida, eine rätselhafte Wurmgruppe aus dem Meeressand. Abhandlungen der Akademie der Wissenschaften und Literatur Mainz, mathematisch-naturwissenschaftliche Klasse, 8:l-32, 1956 Ax : The position of the Gnathostomulida and Platyhelminthes in the phylogenetic system of the Bilateria. In: S. Conway Morris, J. D. George, R. Gibson & H. M. Platt : The Origins and Relationships of Lower Invertebrates, 168-180, Oxford, Clarendon Press, 1986 Riedl : Gnathostomulida from America. Science 163:445-442, 1969 Sterrer : Gnathostomulida: Problems and procedures. Smithsonian Contributions to Zoology, 76:9-15, 1971 Sterrer : Systematics and evolution within the Gnathostomulida. Systematic Zoology, 21(2):151-173, 1972
Categoria:Gnathostomulida