Order Phlebobranchiata Lahille 1887 

 Order Aplousobranchiata Lahille 1887 

 Class Larvacea Herdman 1882 

 Class Thaliacea Van der Hoeven 1850 

 Subclass Myosomata Garstang 1895 

 Order Salpida Jones 1848 

 Order DoHolida Keferstein 1862 

 Subclass Pyrosomata Garstang 1895 

 Order Pyrosomatida Jones 1848 

 Division Acrania Hackel 1866 (Cephalochorda) 

 Subphylum Leptocardii J. Miiller 1845 

 Class Amphioxi J. Miiller 1844 

 Order Amphioxi J. Miiller 1844 

 Division Craniata Lankester 1877 (Vertebrata) 

 Subdivision Anamnia 



Superclass Pisces Linnaeus 1758 

 Class Agnatha 



Subclass Cephalaspidomorphi 

 Order *Osteostraci Lankester 1868 

 Order *Anaspida Traquair 1899 

 Order Cyclostomata 



Suborder Myxinoidea (Hyperotriti Miiller 1844) 

 Suborder Petromyzontia (Hyperoustii Mulier 1844) 

 Subclass *Pteraspidomorphi 

 Order *Heterostraci Lankaster 1868 

 Order *Coelolepida 

 Class *Placodermi McCoy 1848 

 Order *Acanthodii Owen 1860 

 Order *Arthrodira Cope 1891 

 Suborder *Euarthrodira 

 Infraorder *Arctolepida 

 Infraorder *Brachythoraci 

 Suborder *Ptyctodontida Woodward 1891 

 Suborder *Phyllolepida 

 Order *Macropetalichthyida 

 Order *Antiarchi Cope 1885 

 Order *Stegoselachii 

 Suborder *Stensioellida 

 Suborder *Rhenanida 

 Order *Palaeospondyloidea Sollas 1903 

 Class Chondrichthyes J. Mulier 1846 

 Subclass Elasmobranchii Bonaparte 1832 

 Order *Cladoselachii Dean 1894 

 Order Selachii Cuvier 1829 

 Suborder *Hybodontoidea 

 Suborder Heterodontoidea 

 Suborder Notidanoidea 

 Suborder Galeoidea 

 Suborder Squaloidea 

 Order Batoidea Gunther 1870 

 Order *Pleuracanthodii Cope 1889 

 Subclass Holocephali Bonaparte 1832 



[18] 



