This clade is endemic to one specific region (which means that they can only be seen in those regions): tropical, subtropical water and wetland of South America.

Where are sharks found?

Sharks can be found in all five of the Earth's oceans: the Atlantic, Pacific, Indian, Arctic and Southern. These creatures can also be found in freshwater lakes and some rivers; for example, the bull shark is known to travel great distances up the Amazon River.

How many species of elasmobranch are there worldwide?

The classification of elasmobranchs is a subject of continuous debate but they are generally divided into three groups, i.e., squalomorphs, galeomorphs and squatinomorphs, which include 30 families and approximately 368 species and a group known as the batoids composed of rays, skates, torpedoes and sawfishes, ...