Ground sharks are sharks in the largest order Carcharhiniformes, with over 270 species. They include a number of common types, such as catsharks, swellsharks, and the sandbar shark.
Members of this order are characterized by the presence of a nictitating membrane over the eye, 2 dorsal fins, an anal fin, and 5 gill slits.
The families in the order Carcharhiniformes are expected to be revised; recent DNA studies show that some of the conventional groups are not monophyletic.
This category is for animals that are ground sharks.
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