What is Neoselachii?
[[File:Eagle Ray Turks and Caicos Dec 15 2006.JPG|thumb|[[Spotted eagle ray]], at [[Turks and Caicos Islands|Turcs and Caicos islands]], 2006]] The '''Neoselachii''' are an important group of [[cartilage|cartilaginous]] fish in the [[subclass (biology)|subclass]] [[Elasmobranchii]], [[class]] [[Chondrichthyes]]. The group is important because it includes all [[Extant|living]] [[shark]]s, [[skate (fish)|skates]], and [[Batoidea|rays]]. They rapidly diversified during the [[Upper Triassic]]. The group is descended from a primitive type of shark in the [[Devonian |Devonian period]].<ref>Underwood C.J. 2006. Diversification of the Neoselachii (Chondrichthyes) during the Jurassic and Cretaceous (PDF). ''Paleobiology'' '''32''' (2): 215–235. [https://bioone.org/journals/paleobiology/volume-32/issue-2/04069.1/Diversification-of-the-Neoselachii-Chondrichthyes-during-the-Jurassic-and-Cretaceous/10.1666/04069.1.short]</ref> == References == {{reflist}} [[Category:Sharks]] [[Category:Rays]]