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, 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, 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 ›
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, 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 ›
Xenacanthus, meaning “strange spine”, was a 3 foot long shark-like freshwater fish which lived in North America, South America, Europe, and Asia from the second half of the Carboniferous Period to the end of the Permian Period, approximately 323-251 million… Read More ›
Orthacanthus, meaning “straight spine”, was a 10 foot long freshwater shark-like fish which lived during the late Carboniferous Period and early Permian Period roughly 315-275 million years ago. The genus Orthacanthus is divided into twelve different species, two of which… Read More ›
