? crassidens Fritsch, 1876 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Chordata class Amphibia family Tuditanidae Name Homonyms ? crassidens Ameghino, 1891 ? crassidens Agassiz, 1838 ? crassidens Fritsch, 1876 ? crassidens Cragin, 1892 ? crassidens Dixon, 1850 ? crassidens Cope, 1872