Spinops

Utatsusaurus hataii, an Early Triassic Ichthyosaur from Japan, pencil drawing

Leptocleidus capensis, a plesiosaur from the Early Cretaceous of South Africa, pencil drawing, digital coloring

Augustasaurus hagdorni, a pistosaur from the Middle Triassic of nevada. Digital.

Augustasaurus hagdorni, a pistosaur from the Middle Triassic of nevada. Digital.

Nothosaurus mirabilis, a Nothosaur from the Triassic of Europe, North Africa and Russia, pencil drawing

Nothosaurus mirabilis, a Nothosaur from the Triassic of Europe, North Africa and Russia, pencil drawing

Adeopapposaurus mognai, Early Jurassic of Argentina. Digital.

Diversity of Sauropterygia. Above: Ceresiosaurus calcagnii (Nothosauroidea), Henodus chelyops (Placodontia); Below: Aristonectes parvidens, Brachauchenius lucasi (Plesiosauria).

Diversity of Sauropterygia. Above: Ceresiosaurus calcagnii (Nothosauroidea), Henodus chelyops (Placodontia); Below: Aristonectes parvidens, Brachauchenius lucasi (Plesiosauria).

Diversity of Sauropterygia. Above: Ceresiosaurus calcagnii (Nothosauroidea), Henodus chelyops (Placodontia); Below: Aristonectes parvidens, Brachauchenius lucasi (Plesiosauria).

Life reconstruction of Wahlisaurus massarae

Restoration of Hydrotherosaurus alexandrae.

Life reconstruction of Kaiwhekea katiki

Macroplata tenuiceps, a pliosaur from the Early Jurassic of Europe, pencil drawing

Angustinaripterus

Ningchengopterus liuae, early Cretaceous of China. digital.