Plesiosaurus dolichodeirus in the ocean. Plesiosaurus (Greek: plesios, "near" and sauros "lizard") was a large marine sauropterygian reptile that lived during the early part of the Jurassic Period. Plesiosaurus. Colour printed illustration by Heinrich Harder from Wilhelm Bolsches Tiere der Urwelt (Animals of the Prehistoric World), Reichardt Cocoa company, Hamburg, 1908. Heinrich Harder (1858-1935) was a German landscape artist and book illustrator.
Plesiosaurus dolichodeirus in the ocean. Plesiosaurus (Greek: plesios, "near" and sauros "lizard") was a large marine sauropterygian reptile that lived during the early part of the Jurassic Period. Plesiosaurus. Colour printed illustration by Heinrich Harder from Wilhelm Bolsches Tiere der Urwelt (Animals of the Prehistoric World), Reichardt Cocoa company, Hamburg, 1908. Heinrich Harder (1858-1935) was a German landscape artist and book illustrator.