paleozoology

NOUN /,peɪlioʊzoʊ'ɑlədʒi/
12 LETTERS · 7 SYLLABLES · STARTS WITH P

paleozoology is a valid 12-letter word worth 27 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3A1L1E1O1Z10O1O1L1O1G2Y4
3 + 1 + 1 + 1 + 1 + 10 + 1 + 1 + 1 + 1 + 2 + 4 =27 PTS
DOUBLE WORD → 54TRIPLE WORD → 81
MEANING

What does paleozoology mean?