IODP SEDIS - Thesaurus -

Pisces
BT	Chordata
	.Vertebrata
	..Pisces
NT	Acanthodii
	Chondrichthyes
	Osteichthyes
	Placodermi
RT	Agnatha
	fish scales
	eggs
	ichthyoliths
	gastroliths
	Heterostraci
	otoliths
SN	Before 1981, Agnatha and Heterostraci were included as narrower terms.