Caption:
Extinct Ceratodus latissimus among reeds on the ocean floor. Ceratodus (Greek for horned tooth) was a genus of extinct sarcopterygiian lungfish from the middle Triassic to the late Cretaceous. Molchfisch Ceratodus. 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.