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Coelacanth. Coelacanths (/ ˈsiːləkænθ / ⓘ SEE-lə-kanth) (order Coelacanthiformes) are an ancient group of lobe-finned fish (Sarcopterygii) in the class Actinistia. [2][3] As sarcopterygians, they are more closely related to lungfish and tetrapods (which includes amphibians, reptiles, birds and mammals) than to ray-finned fish.
Southeastern Ohio was a swamp-covered coastal plain. [4] Ferns and horsetails were among the state's rich flora. [3] Ohio was only about 5 degrees north of the equator. Sand and mud deposited on local river deltas gradually filled in the swamp. Later in the Permian Ohio was subjected to geologic uplift and its sediments were eroded away ...
Dunkleosteus. Dunkleosteus is an extinct genus of large arthrodire ("jointed-neck") fish that existed during the Late Devonian period, about 382–358 million years ago. It was a pelagic fish inhabiting open waters, and one of the first apex predators of any ecosystem. [1]
Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is called paleoichthyology. A few living forms, such as the coelacanth are also referred to as prehistoric fish ...
Updated August 15, 2024 at 1:06 PM. Kayakers and snorkelers exploring the Southern California coast spotted an extremely rare oarfish, nicknamed a "doomsday fish" since they are seen in some parts ...
The question of “the first meal” has long been debated, but researchers might have a new answer thanks to some fish bones found in northern Israel, a new study shows.
August 15, 2024 at 4:20 PM. SAN DIEGO (AP) — A rarely seen deep sea fish resembling a serpent was found floating dead on the ocean surface off the San Diego coast and was brought ashore for ...
Leedsichthys is an extinct genus of pachycormid fish that lived in the oceans of the Middle to Late Jurassic. [1] It is the largest ray-finned fish, and amongst the largest fish known to have ever existed. [2] The first remains of Leedsichthys were identified in the nineteenth century. Especially important were the finds by the British ...