Diplognathus, literally “double jaw”, was a saltwater placoderm fish which lived in what’s now North America at the end of the Devonian Period 362-360 MYA. In 1877, the fossil hunter Jay Terrell discovered the front half of a lower jaw… Read More ›
fish
Bungartius
Bungartius was a prehistoric saltwater fish measuring over 6 feet long which lived in what’s now North America during the late Devonian Period 362-360 million years ago. On September 16, 1936, Peter Anthony Bungart, who worked in the Department of… Read More ›
Orodus
Orodus was a prehistoric saltwater fish which lived from the late Devonian Period to the middle Permian Period 380-278 million years ago. The genus Orodus was officially named by the famous Swiss ichthyologist Louis Agassiz in 1838. It became the… Read More ›
Ctenacanthus
Ctenacanthus, meaning “comb spine”, was a prehistoric proto-shark which lived from the late Devonian Period to the early Permian Period 370-270 million years ago. The genus Ctenacanthus was named by the famous Swiss ichthyologist Louis Agassiz in 1837 for fossilized… Read More ›
Sphenacanthus
Sphenacanthus, meaning “wedge spine”, was a genus of primitive proto-shark measuring 3 feet long which lived from the late Devonian Period to the end of the Permian Period 360-252 million years ago. Sphenacanthus was named in 1837 by the Swiss… Read More ›
Estesesox
Introduction Pikes are some of the largest carnivorous freshwater fish today. Some species grow to be 5 feet long and are the dominant predators in their watery world. Pikes belong to the family Esocidae, which also includes blackfish and mud… Read More ›
Acronichthys
Acronichthys was a tiny fish measuring just 4 cm (1.6 inches) long which lived in freshwater environments within western North America during the late Cretaceous Period 90-66 million years ago. Fossils of this fish, or fossils which might belong to… Read More ›
Cladoselache
Cladoselache was a 6 foot long primitive proto-shark which lived during the late Devonian Period 370-360 million years ago. Several publications from the 20th Century state that Cladoselache was the oldest-known shark. However, studies from the early 2000s onwards have… Read More ›
Stethacanthus
Stethacanthus was a primitive proto-shark which swam the seas from the late Devonian Period to the end of the Carboniferous Period approximately 380-300 million years ago. Fossils of various species of this genus have been found worldwide. Stethacanthus is distinctive… Read More ›
Diplodoselache
Diplodoselache, meaning “double-toothed shark”, was a prehistoric freshwater proto-shark which lived in Scotland during the early Carboniferous Period 345-330 million years ago. Teeth of this animal were discovered in the Wardie Shale Formation of Scotland’s Midland Valley during the 1840s,… Read More ›
