
keraterpetan

keraterpetan lapospondyl ubhayachar kaa ack vilupt vansh haye, joe pahale europe (check ganarajya, ingland aur ireland) aur uttari america (sanyukt raajya) key carboniferous kaal seey monotypic caraterpedontidae parivaar key bheetar shamil thaa; yeh parivaar diplocolidae kaa sabse purana gyaat sadasya haye. 
iss prakaar kii prajaati keraterpetan galwani haye, jise 1866 mein robert etheries dwara "cereterpetton" key roop mein naamit kiya gayaa thaa aur baad mein 1868 mein thomas heinry huxley aur edward persival raait dwara "keraterpetan" mein sanshodhit kiya gayaa thaa; teen saal pahale (navambar 1865 mein), unhein villium buki brounerig dwara apane sangrah mein kuchh jeevaashm kasheruki kaa varnan karane key liye adhikrit kiya gayaa thaa, aur unamen seey aine. aich. aim. aff. 14735 thaa, joe "keraterpetan galwani" kaa holotype thaa, jise county kilkeni, ireland mein jairo colliery mein khoja gayaa thaa.
"keraterpetan" lagbhag lamba ack salamender jaisa prani thaa. isaki poonchh janwar kii kull lambai kaa dou tihai hissa letee thee, aur baad mein samtal thee, sambhavatah tairaki mein sahaayata key liye. isaki khopadi goal aur chhoti thee, vishesh roop seey jaba isake permian saapeksh, "diplocoulus" kii tulanaa mein. isake pichhale pairon mein paanch pair kii ungaliyaan theen, aur agranguon seey lambi theen, jinamen kewal chaar pair kii ungaliyaan theen.
"keraterpetan" ack sapaat side-way thaa, joe koyale key daldal key dhundhale paani key madhyam seey khud koo dhakelane mein madad kartaa jisamen yeh rahata thaa. paanch pair vaale pichhale pair chaar pair vaale agra pair seey lambe they aur chhoti, goal khopadi kii aankhen bahut aage kii or theen. halanki "keraterpetan" kaa shareer lamba thaa, lekin isamen adhikansh anya ubhayachar prajaatiyon (ausatan 15-26) kii tulanaa mein adhik kasheruka naheen thee.

