
nanulepisostius

meksikkoyile ooksaakkayile avasana jurassic kaalaghattatthil ariyappedunna vamshanasham sambhavicha gaar janussaanu nanulepisostius ("naanu", "pazhaya" + "lepisostius" ennathinulla mixteca). ithil orotta inam undu, enn. meksikkans. phoosil avashishtangalil ninnu ariyappedunna yadhaartha gaarinte ettavum pazhaya inamaanithu.
"sabinal roopeekaranathinte kimmaridjian-aged lyano yosob nikshepangalil ninnulla disarticulated thalayotiyile avashishtangalil ninnum ganoid skeyilukalil ninnum "nanulepisostius" ariyappedunnu. basel jinglimody chila swabhaavasavisheshathakal nilanirthunnundengilum, aadhunika gaarumaayi kooduthal saamyamulla thaadiyellu ghadana polulla chila savisheshathakal ithinu undu, ithu gaar valare roopashaasthraparamaayi yaadhaasthithikamaaya oru grouppaanennu soochippikkunnu.
"nahanulepisostius" poornnamaayum samudra paristhithiyil vasichirunnu, pradhaanamaayum shudhajala taxaya aadhunika gaaril ninnu vyathyasthamayi, samudra parithasthithikalil idaykkide maathrame kaananakoo. aadyakaala kreeteshyasinu munbu shudhajala paristhithikale aakramikkunnathin munbu gaar yadhaarthathil samudra malsyamaayirikkaamennu ithu soochippikkunnu.