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 ›
marine
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 ›
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 ›
Sulcusuchus
Sulcusuchus was a small polycotylid plesiosaur which lived off the coast of Argentina during the late Cretaceous Period around 70 million years ago. The fossils of this animal (collection ID code: MLP 88-IV-10-1) were first discovered 25 km north of… Read More ›
Megalneusaurus
In the prehistoric past, the center of North America has been underwater on several occasions. Perhaps the most well-known of these instances was during the late Cretaceous Period when North America was cut in half by the Western Interior Seaway… Read More ›
Eternauta
Eternauta patagonica was an ichthyosaur which lived around Argentina during the late Jurassic Period 152-145 million years ago. Fossils of this Jurassic marine reptile, consisting of a well-preserved skull measuring nearly four feet long, a flipper, and fragments of ribs,… Read More ›
Catutosaurus
Catutosaurus, meaning “the lizard from Los Catutos”, was a small ichthyosaur which lived around Argentina during the late Jurassic Period 152-145 million years ago. Fossils of this animal were found in the Vaca Muerta (“Dead Cow”) Formation, and the exact… Read More ›
Nannopterygius
Nannopterygius, meaning “tiny fin”, was a genus of ichthyosaur which lived around Europe from the late Jurassic to the early Cretaceous Period approximately 152-140 million years ago. There are currently six species assigned to this genus: N. borealis, found within… Read More ›
