tatana

tatana, "kooduthal vyakthamaayi tatana infleta", valare cheruthum discus polulla ediyaakaaran fossilaanu. ithinte ettavum valia vyaasam 6.4 millimeter neelavum radial cemetricalumaanu. ithinu valare nirvachikkappettathum nertthathumaaya radial varakalundu. kaikaalukaludeyo anubandhangaludeyo adayaalangalonnum kaanikkaatha pradhana shareeram fosilukalude pradhana bhaagamaanenn thonni. "ellah radial varakalum madhyathil cherunna oru kendra mekhalayaanu "tatana". varakal oru pradhana pathayil ninnu shaakhakalaayi marunnilla, avayil ekadesham 100 ennam shareerathil undu. 
tatyana", "ediyaakaaran" fossilukal thammil niravadhi samaanathakalundengilum, "tatyana" yill illaatha chila swathukkalum undu, udaaharanathinu shaakhakalulla saadhaarana "ediyaakaaran" pravanatha kanunnilla. vaasthavathil, eee pravanatha oru "cyclomedusa" swabhaavamaayi kanakkaakkappedunnu. "taattena" medusoidukal vibhaagathil pedunnathaanennu aadyam karuthiyirunnuvenkilum medusoid problemica kaaranam semiostomiya kramam sthireekarichu. 
taattena infaulta", mattu ediyaakaaran-cambrian discoidal jeevikal ennivayude kandethal avayude ardhathekkurichum avaye engane tharamthirikkaam, avaa enthaanu ardhamaakkunnathu ennathinekkurichum dhaaraalam puthiya charchakalkkum ashayangalkkum kaaranamaayi.
"thekkan australiyayilaanu "tatana" kandethiyathu. ediakara kunnukalile regg sprig aanu ithu kandethiyathu. upper adalide superbassin seereesaaya poundu kwaartsaittaanu phoosil. 
"tatana" aazhathilulla kadal, mriduvaaya shareeramulla oru jeeviyaayirunnu, athu mikkavarum bio-maatt bhakshikkunnu. 

