Author	Continent	Country	Date	Period	Genus
Alekseeva	Asia	Mongolia	1992	Devonian	Levenea
Amsden	NA	USA OK	1956	Silurian	Levenea
Amsden	NA	USA OK	1958	Devonian	Levenea
Baarli	Europe	Norway	1988	Silurian	Levenea
Boucot	NA	Canada	1986	Devonian	Levenea
Cuffey	NA	USA PA	1988	Devonian	Levenea
Feldman	NA	USA NY	1980	Devonian	Levenea
Gratsianova	Asia	USSR	1960	Devonian	Levenea
Hou	Asia	China	1963	Devonian	Levenea
Johnson	NA	USA NV	1962	Devonian	Levenea
Koch	NA		1982	Devonian	Levenea
Sheehan	NA	Mexico	1975	Devonian	Levenea