Note: Do not rely on this information. It is very old.
Ichthyopsida, the lowest of three primary groups of True Vertebrates, containing the fishes and amphibians. Respiration takes place by gills during part or the whole of life.
“Do not conform any longer to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God's will is – his good, pleasing and perfect will.” – Romans 12:2