
rithrodan

chrysettidae kudumbatthile elikalude oru janussaanu raithroden. 
thaazhepparayunna jeevajalangal ithil ulppedunnu
shaasthreeya namam "chaanal tooth" ennu vivarthanam cheyyappedukayum mukalile murivukalile kuzhikale soochippikkukayum cheiyunnu. ettavum pazhaya fossilukal ekadesham naalu dasalaksham varshangalkk munbulla pleosene kaalaghattatthinte avasaanathil ninnullathaanu. mayoseen kaalaghattatthinte avasaanathode thekke amerikkayile thekkan pradeshangal kooduthal varandathaayitheernnathode eee janussinte adutha poorvvikar parinamichirikkaam.

