Cyclostomata	ANCESTRAL SPECIES	989																ENSGT00940000157203.a #22	ENSGT00940000158423 #23
Lamprey	MODERN SPECIES	1453																ENSPMAG00000000479 #22	ENSPMAG00000000473 #23
Hagfish	MODERN SPECIES	1509																ENSEBUG00000014983 #22	slc25a42 (ENSEBUG00000002553)