What is Castoridae?
{{Taxobox | name = Castoridae | fossil_range = Late [[Eocene]] - Recent | image = Beaver.jpg | image_width = 200px | image_caption = [[American Beaver]], ''Castor canadensis'' | regnum = [[Animal]]ia | phylum = [[Chordata]] | classis = [[Mammal]]ia | ordo = [[Rodent]]ia | subordo = [[Castorimorpha]] | familia = '''Castoridae''' | familia_authority = [[Wilhelm Friedrich Hemprich|Hemprich]], 1820 | subdivision_ranks = [[Genus|Genera]] | subdivision = <!-- †''[[Eocastoroides]]''<br> †''[[Steneofiber]]''<br> †''[[Neatocastor]]''<br> †''[[Asiacastor]]''<br> †''[[Youngofiber]]''<br> †''[[Trogontherium]]''<br> †''[[Eucastor]]''<br> †''[[Schreuderia]]''<br> †''[[Dipoides]]''<br> †''[[Boreofiber]]''<br> †''[[Romanocastor]]''<br> †''[[Zamolxifiber]]''<br> †''[[Procastoroides]]''<br> †''[[Castoroides]]''<br> †''[[Paradipoides]]''<br> †''[[Agnotocastor]]''<br> †''[[Capacikala]]''<br> †''[[Pseudopalaeocastor]]''<br> †''[[Fossorcastor]]''<br> †''[[Euhapsis]]''<br> †''[[Migmacastor]]''<br> †''[[Propalaeocastor]]''<br> †''[[Palaeomys]]''<br> †''[[Palaeocastor]]''<br> †''[[Hystricops]]''<br> --> ''[[Beaver|Castor (modern-day Beavers)]]''<br /> plus about 21 extinct genera }} [[Image:Biberschaedel-drawing.jpg|120px|left|thumb|Skull of a [[beaver]].]] '''Castoridae''' is a [[family (biology)|family]] of rodents. Today, the only [[genus]] that has alive [[species]] in it is ''Castor''. It contains modern-day [[beaver]]s. In addition, about 20 extinct genera of beavers have been put into the family. {{biology-stub}} [[Category:Rodents]]