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[3] [4] Douglas Long was the first to notice the new shark species while he was processing the fish samples that were collected during the expedition. [3] Though not yet formally described, the name Galápagos catshark was used in non-scientific shark literature for several years prior to the published description. [5]
Galeomorphii is a superorder of sharks.They are sometimes called galea or galean sharks.There are about 300 living species in 23 families.Galean sharks are divided into four orders: the Heterodontiformes, Orectolobiformes, Lamniformes, and Carcharhiniformes.
This WikiProject is about Sharks.The aim of the project is to write a good article of every known shark species out there (all 368 or however many there are :-)), as well as to write articles about shark-specific topics such as biology, etc. (including fiction) articles.
Ground sharks, like this blacknose shark, have a nictitating membrane which can be drawn over the eye to protect it. Carcharhiniformes / k ɑːr k ə ˈ r aɪ n ɪ f ɔːr m iː z / , commonly known as ground sharks, are the largest order of sharks , with over 270 species.
Identification of the 8 extant shark orders. Shark is the naming term of all members of Selachimorpha suborder in the subclass Elasmobranchii, in the class Chondrichthyes.The Elasmobranchii also include rays and skates; the Chondrichthyes also include Chimaeras.
The Pseudotriakidae are a small family of ground sharks, belonging to the order Carcharhiniformes, containing the false catsharks (genera Pseudotriakis and Planonasus) and gollumsharks (genus Gollum).
Sphyrna alleni is a small species of shark, measuring less than 150 centimetres (4.9 ft) in length. Like other hammerhead sharks , its head is shaped into a flattened cephalofoil. The latter has a more angular anterior edge than that of S. tiburo , and bears lobes on its posterior edges, leading to it being described as "shovel-like". [ 1 ]
The most widely known species still surviving is the frilled shark, known as a living fossil, along with the Southern African frilled shark, found along coastal areas of South Africa. Several extinct species are known. †Crassodontidanidae †Crassodontidanidae: 4 8 Extinct: Hexanchidae: Cow sharks: 3 extant 5 extinct 5 extant 31 extinct