daayanaasor

daayanaasor
jeevaashm kaal: kaarniyn se vartamaan
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अमेरिका के प्राकृतिक इतिहास संग्रहालय में संगृहीत डायनासोरों की दो प्रजातियों के कंकाल
America ke praakrutik itihaas sangrahaalaya mein sangruheet daayanaasoron ki do prajaatiyon ke kankaal
vaigyaanik vargeekaran
jagat: jantu
sangh: kasheruki
upasangh: rajjuki
varg: sareesrup
up-varg: daayaapsid
infra-varg: aarkosauromorfa
suparaordar: daayanosauriya
ovan, 1842

daayanaasor (laatin : Dinosauria) jiska arth yoonaani bhaasha mein badi chhipkali hota hai lagbhag 16 karod varsh tak pruthvi ke sabse pramukh sthaleeya kasheruki jeev the. yeh traaiesik kaal ke ant (lagbhag 23 karod varsh pehle) se lekar kreeteshiys kaal (lagbhag 6.5 karod varsh pehle), ke ant tak astitv mein rahe, iske baad inmein se jyaadaatar kreeteshiys -truteeyak vilupti ghatna ke falasvaroop vilupt ho gaye. jeevaashm abhilekh ingit karte hain ki pakshiyon ka praadurbhaav juraasik kaal ke dauraan theropod daayanaasor se hua tha aur adhiktar jeevaashm vigyaani pakshiyon ko daayanaasoron ke aaj tak jeevit vanshaj maanate hain. hindi mein daayanaasor shabd ka anuvaad bheemasarat hai jis ka sanskrut mein arth bhayaanak chhipkali hai.

daayanaasor pashuon ke vividh samooh the. jeevaashm vijnyaaaniyon ne daayanaasor ke ab tak 500 vibhinn vanshon aur 1000 se adhik prajaatiyon ki pehchaan ki hai aur inke avashesh pruthvi ke har mahaadveep par paaye jaate hain. kuchh daayanaasor shaakaahaari to kuchh maansaahaari the. kuchh dvipaad tatha kuchh chaupaaye the, jabki kuchh aavashyakta anusaar dvipaad ya chaturpaad ke roop mein apne shareer ki mudra ko parivrtit kar sakte the. kai prajaatiyaan ki kankaaleeya sanrachana vibhinn sanshodhanon ke saath viksit hui thi, jinme astheeya kavach, seeng ya kalagi shaamil hain. haalaanki daayanaasoron ko aam taur par unke bade aakaar ke liye jaana jaata hai, lekin kuchh daayanaasor prajaatiyon ka aakaar maanav ke baraabar to kuchh maanav se chhote the. daayanaasor ke kuchh sabse pramukh samooh ande dene ke liye ghonsale ka nirmaan karte the aur aadhunik pakshiyon ke samaan andaj the.

"daayanaasor" shabd ko 1842 mein sar richrd oven ne gadha tha aur iske liye unhonne greek shabd δaaεaaιaaνaaόaaς (deenos) "bhayaanak, shaktishaali, chamatkaarik" + σaaαaaῦaaρaaοaaς (sauraus) "chhipkali" ko prayog kiya tha. beesaveen sadi ke madhya tak, vaigyaanik samudaaya daayanaasor ko ek aalasi, naasamajh aur sheet rakt wala praani maanate the, lekin 1970 ke dashak ke baad huye adhikaansh anusandhaan ne is baat ka samarthan kiya hai ki yeh ooainchi upaapachaya dar vaale sakriya praani the.

unneesaveen sadi mein pehla daayanaasor jeevaashm milne ke baad se daayanaasor ke tange kankaal duniya bhar ke sangrahaalayon mein pramukh aakarshan ban gaye hain. daayanaasor duniyaabhar mein sanskruti ka ek hissa ban gaye hain aur lagaataar inki lokapriyta badh rahi hai. duniya ki kuchh sabse jyaada bikne waali kitaabein daayanaasor par aadhaarit hain, saath hi juraasik park jaisi filmon ne inhein poore vishv mein lokapriya banaane mein mahatvapoorn bhoomika nibhaai hai. inse judi nai khojon ko niyamit roop se media dvaara kavar kiya jaata hai.

baahari kadiyaaain