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Keywords: Rays
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Journal Articles
Brain Behav Evol (2012) 80 (2): 80–96.
Published Online: 13 September 2012
... stages of the evolution of jawed vertebrates, this group also covers a diverse range of eco-morphotypes, occupying both marine and freshwater habitats. The class Chondrichthyes is divided into two subclasses: the Elasmobranchii (sharks, skates, and rays) and the Holocephali (elephant sharks and chimaeras...
Journal Articles
Brain Behav Evol (1984) 24 (2-3): 124–134.
Published Online: 07 March 2008
... to be present in skates and rays, but its presence in the subclass Holocephali, the sister group to the Elasmobranchii, indicates that this proposed circumventricular organ is an ancient brain characteristic of this line of vertebrates, perhaps predating the emergence of the class Chondrichthyii. The different...
Journal Articles
Brain Behav Evol (1991) 38 (1): 39–52.
Published Online: 30 January 2008
... and Raja rhina) and a bat ray (Myliobatis californica). The Rajoids are closely related to the Rhinobatoids which contains Platyrhinoidis, an elasmobranch that does not have a nucleus raphe dorsalis. Myliobatis was chosen for an outgroup comparison. Most of the nuclei that were 5-HT+ were also LENK...