Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Plesiosauroids yakashanduka-shanduka kubva kune yakare, mafomu akafanana akadai se pistosaurs. Kune mhuri dzinoverengeka dze plesiosauroids, idzo dzinochengeta chitarisiko chakafanana uye dzinosiyaniswa nemamwe mashoko akasiyana-siyana. Izvi zvinosanganisira Plesiosauridae, mhando dzisina kunyatsogadziriswa dzinongogumira ku Early Jurassic period; Cryptoclididae, (semuenzaniso Cryptoclidus), ine mutsipa murefu uye yakasimba; Elasmosauridae, ine mitsipa mirefu, inochinjika uye misoro midiki; uye Cimoliasauridae, boka risingazivikanwe remhando diki dzeCretaceous. Maererano nemarudzi akare, plesiosauroids ese ane musoro mudiki uye mutsipa murefu asi, mumarudzi achangoburwa, rimwe boka reCretaceous rine mutsipa mupfupi uye musoro mukuru, iyo Polycotylidae, inosanganisirwa pasi pePlesiosauroidea, kwete pasi pePliosauroidea yechinyakare. Kukura kwe plesiosaurs kwakasiyana-siyana zvikuru, neurefu hunofungidzirwa hweTrinacromerum huri mamita matatu uye Mauisaurus ichikura kusvika kumamita makumi maviri.  Mubvunzo: Izwi rokuti Plesiosauroids raimbova chii?
mapistosaurus