Fossorial Origin of the Turtle Shell

Eunotosaurus africanus and Bradysaurus in the background

http://www.theatlantic.com/science/archive/2016/07/the-turtle-shell-first-evolved-for-digging-not-defence/491087/

Original paper: Lyson et al. 2016

Last ichthyosaurs

Two Cenomanian ichthyosaurs Pervushovisaurus bannovkensis, 
fish: Aipichthyoides, Cretolamna 
rudists

http://www.nature.com/ncomms/2016/160308/ncomms10825/full/ncomms10825.html

Aquilonifer spinosus

http://www.eartharchives.org/articles/extinct-sea-creature-s-fragile-babies-hung-on-by-a-thread/

Asilisaurus

Asilisaurus kongwe

Cambrian Burgess Shale animals

Opabinia regalis

Hallucigenia sparsa

Dollocaris

http://www.eartharchives.org/articles/extinct-crustacean-dollocaris-was-all-eyes/

Bistahieversor

Reconstruction and study.