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The first shark-like chondrichthyans appeared in the oceans 400 million years ago, [1] developing into the crown group of sharks by the Early Jurassic. [2] Listed below are extant species of shark. Sharks are spread across 512 described and 23 undescribed species in eight orders. The families and genera within the orders are listed in ...
Both the genus and species name derive from the word fo, Samoan for "cardinalfish". [10] Ja ana S. Ueno, 1955 – Family Carabidae. This is a blind carabid from the Ja-Ana Cave near Gifu in southern Japan. However, the original genus Ja has been reclassified as a subgenus of Jujiroa, so its valid binomial name is currently Jujiroa ana (11 ...
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There are numerous species of sharks found in the Pacific Ocean; of these sharks, 36 [1] have habitat ranges throughout the coastlines and surrounding waters of California, as identified below. Identifications include common names; scientific names; the taxonomic rank, family; conservation statuses according to IUCN; and an image.
Sharks portal; The pygmy lanternshark (Etmopterus fusus) is a shark of the family Etmopteridae found in the eastern Indian Ocean from northern Western Australia and possibly Java, at depths of between 430 and 550 m. Its length is up to 26 cm. Reproduction is ovoviviparous.
Scyliorhinidae is a family of sharks, one of a few families whose members share the common name catsharks, belonging to the order Carcharhiniformes, the ground sharks. Although they are generally known as catsharks, some species can also be called dogfish due to previous naming. [ 2 ]
Sharkbook is a global database for identifying and tracking sharks, particularly whale sharks, using uploaded photos and videos.In addition to identifying and tracking sharks, the site allows people to "adopt a shark" and get updates on specific animals.
It contains the two extant species of lemon sharks: the lemon shark (N. brevirostris) of the Americas, and the sicklefin lemon shark (N. acutidens) of the Indo-Pacific. Both species are large, slow-moving, bulky sharks inhabiting shallow coastal waters, and can be identified by their short, blunt snouts, two dorsal fins of nearly equal size ...