procrodon

proecrodon hii dakshin americetil namshesh jhalelya sastan pranyanchi eka sanshayaspad prajati aahe. tyachi prajati proecrodon transformats aahe. khalcha purvadhruviy kinwa daadh haah ekmev dnyat namuna aata haravala aahe aanee tyache sambandh adnyat aahet.
1899 madhye, santiago rothney patagoniamadhye gola kelelya ekach datavar aadharit naveen vansh aanee prajatila 'proecrodon transformats' asey naav dile. vansh naav greek προ "aadhi", άκρος "tokdar" aanee δον "daat" pasoon aale aahe aanee datanchya aakaracha sandarbh dete, joou tyachya mageel bhagapeksha tyachya mageel bhagat unch chadhato. rothney yaa vargikaran yantrachi tulana 'megacrodon' shhee kelee, jyala tyane tyach kagdavar 'hyrachius' asey naav dile. florentino ameghinone namuna pratyaksh naan pahata tyachya swatachya vansh 'trimerostephanus' saha 'proecrodon' chaa paryay deela. 1904 madhye, palmarne 'proecrodon' aanee 'trimerostephanos' yaa donhi goshtinna isotemnidaeche sadasya mhanoon soochibaddha kele. 1948 madhye george gayloard simpson yanni karpranalila sambhavya litoptern mhanoon soochibaddha kele aanee assa nishkarsh kadhala qee karpranali heey 'vanum' heey naav aahe, aanee ameghinochya 'trimerostephanos' chya samanarthi prastavakade shakya titke pahile, parantu vishvasarh nahee.
daat kuthe gola kele gele heey nishchitpane maheet nahee, parantu kadachit teey ekatra tayar hott hote.

