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Squatinactis Chas isnuvannya kam yanovugilnij periodBiologichna klasifikaciyaDomen Yaderni Eukaryota Carstvo Tvarini Animalia Tip Hordovi Chordata Klas Hryashovi ribi Chondrichthyes Pidklas Plastinozyabrovi Elasmobranchii Ryad SquatinactiformesZangerl 1981Rodina SquatinactidaeCappetta et al 1993Rid SquatinactisLund and Zangerl 1974VidiS montanus S caudispinatusSquatinactis vimerlij rid hryashovih rib pidklasu Plastinozyabrovi Elasmobranchii Klasifikaciya cogo rodu dosit problematichna Narazi rid vidnosyat do monotipovogo ryadu Squatinactiformes z monotipovoyu rodinoyu Squatinactidae Vid isnuvav u kam yanovugilnomu periodi 326 318 mln rokiv tomu Skam yanilosti cih rib znajdeni u Vedmezhij ushelini u shtati Montana SShA Golotip zberigayetsya u kolekciyi Muzeyu Karnegi Opis red Squatinactis maye zubi shelepi i cherep kladodontnogo tipu Jogo tilo nagaduye suchasnih skativ ta akul angeliv Vin mav sploshene tilo i grudni plavci znachno rozshireni z bokiv Squatinactis jmovirno vikoristovuvali krilopodibni grudni plavci a takozh batogopodibnij hvist dlya privedennya v ruh Cej dizajn tila povtoryuvavsya kilka raziv v skam yanilostyah dlya donnih zasadnih hizhakiv Voni dosyagali do 60 sm zavdovzhki Ye kilka plakoyidnih lusochok na mordi j bokah ale reshta tila Squatinactis vkrite gladkoyu shkiroyu Hrebet na verhnij chastini hvosta yak i v suchasnih skativ vkritij spinnim plavcem Mav tupu mordu terminalnij rot veliki shelepi i dovgi gostri kladodontni zubi Posilannya red Lund R 1988 New information on Squatinactis caudispinatus Chondrichthyes Cladodontida from the Chesterian Bear Gulch Limestone of Montana J Vert Paleo 8 340 342 Lund R and R Zangerl 1974 Squatinactis caudispinatus a new elasmobranch from the Upper Mississippian of Montana Ann Carnegie Mus 45 43 54 Annals of the Carnegie Museum Volume 45 pp 43 55 Dec 27 1974 Journal of Vertebrate Paleontology Volume 8 pp 340 343 Sept 1988 nbsp Ce nezavershena stattya pro vikopnih rib Vi mozhete dopomogti proyektu vipravivshi abo dopisavshi yiyi Otrimano z https uk wikipedia org w index php title Squatinactis amp oldid 40009241