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Family Chlamydoselachidae (frilled sharks) Genus Chlamydoselachus Garman, 1884. Chlamydoselachus africana Ebert & L. J. V. Compagno, 2009 (Southern African frilled shark) Chlamydoselachus anguineus Garman, 1884 (frilled shark) Family Hexanchidae (cow sharks) Genus Heptranchias Rafinesque, 1810. Heptranchias perlo (Bonnaterre, 1788) (sharp-nose ...
Shark. † Synechodontiformes. Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha[1] (or Selachii) and are the sister group to the Batoidea (rays and kin).
This victim fell overboard and was killed by a shark while swimming in Pensacola Bay, Santa Rosa County, Florida. John Bloomquist. September 23, 1911. Unconfirmed, probably a bull shark. Bloomquist was killed by a shark in the Galveston, Texas, ship channel after he jumped overboard to rescue a companion. George Spencer.
A great white shark at Isla Guadalupe, Mexico. The following outline is provided as an overview of and topical guide to sharks: Sharks (superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a highly streamlined body. The earliest known sharks date from more than 440 million years ago, before the time of the dinosaurs.
The whale shark, the world's largest fish, is classified as Endangered. Binding legislation and harvest management strategies... are urgently needed to address the disproportionate impact of fisheries on cartilaginous fishes. – IUCN global study 2010 Threatened sharks are those vulnerable to endangerment (extinction) in the near future. The International Union for Conservation of Nature ...
Shark Week is an annual, weeklong, shark-themed TV programming block at the Discovery Channel.Shark Week originally premiered on July 17, 1988. Featured annually, in July or early August, it was originally devoted to conservation efforts and correcting misconceptions about sharks. [1]
Tiger shark. Oceanic whitetip shark. Carcharhinus longimanus. Carcharhinidae. Critically endangered [10] Oceanic whitetip shark with some pilot fish. Blue shark. Prionace glauca. Carcharhinidae.
Carcharhiniformes. Ground sharks, like this blacknose shark, have a nictitating membrane which can be drawn over the eye to protect it. Carcharhiniformes / kɑːrkəˈraɪnɪfɔːrmiːz /, the Requiem sharks, are the largest order of sharks, with over 270 species. They include a number of common types, such as catsharks, swellsharks, and ...