fish

Chinlea

Chinlea was a freshwater coelacanth fish measuring 2.5 feet long which lived in North America during the late Triassic Period approximately 210-201 million years ago. Fossils which might belong to Chinlea have also been found in rocks dating to the… Read More ›

Paranomotodon

Paranomotodon, whose name means “near/almost Anomotodon“, was a primitive thresher shark which lived during the middle and late Cretaceous Period, circa 95-66 million years ago. Anomotodon was an extinct species of goblin shark, and fossil shark teeth which were found… Read More ›

Serratolamna

Serratolamna was a genus of prehistoric shark which lived from the late Cretaceous Period to the Eocene Epoch of the Paleogene Period, approximately 75-45 million years ago. The genus is currently divided into several species, of which the species S…. Read More ›

Gualolepis

Gualolepis was a prehistoric freshwater fish which lived in western Argentina during the middle of the Triassic Period 235-234 million years ago. Only two specimens of this fish have been found (collection ID codes: PULR 106 and PULR 107), and… Read More ›

Challaia

Challaia was a genus of prehistoric freshwater fish which lived in South America during the early and middle Triassic Period 240-230 million years ago. Its fossils have been found within several geological formations in western Argentina. Challaia belonged to the… Read More ›

Strophodus

Strophodus was a 10 foot long hybodont shark which specialized in eating shellfish. It appeared during the early Jurassic Period and went extinct during the early Cretaceous Period, making it one of the longest-lived shark genera in the fossil record…. Read More ›

Halecodon

Halecodon denticulatus was a species of prehistoric saltwater fish, which is estimated to have measured 20 inches long, and which lived around 105-98 million years ago within the Mowry Sea which once covered the center of North America during the… Read More ›

Leptostyrax

Leptostyrax was a genus of prehistoric sand tiger shark measuring an impressive 20 feet long which lived in the oceans around North America, Europe, Africa, and Australia during the Cretaceous Period approximately 125-75 million years ago. Leptostyrax has a long… Read More ›

Leucichthyops

Leucichthyops vagans was a species of prehistoric salmonid fish which lived in what’s now western North America during the middle of the Cretaceous Period approximately 100 million years ago. The species was named in 1919 by Theodore D. A. Cockerell,… Read More ›