A big family

A huge group of Platypterygius ichthyosaurs swim in the ancient seas of southern Chile, moving in search of snacks.
https://www.conicyt.cl/blog/2016/03/31/judith-pardo-los-ictiosaurios-de-torres-del-paine-pueden-revelar-el-secreto-de-su-evolucion/
http://publicaciones.mnhn.gob.cl/668/articles-71221_archivo_01.pdf