Genesis 21 And all flesh died that moved upon the earth, both of fowl, and of cattle, and of beast, and of every creeping thing that creepeth upon the earth, and every man:
22All in whose nostrils was the breath of life, of all that was in the dry land, died.
23And every living substance was destroyed which was upon the face of the ground, both man, and cattle, and the creeping things, and the fowl of the heaven; and they were destroyed from the earth: and Noah only remained alive, and they that were with him in the ark.
So it seems that God says only landlife died out.
I put your last line in bold text.
DIED OUT. What is so difficult here? Is your screen name relative to your reading bility? DIED OUT, extinct.
Key words - “UPON THE EARTH”. “WHICH WAS UPON THE THE FACE OF THE GROUND.” “FOWL OF THE HEAVEN”
Did you see that? I didn’t either, no mention of sealife.