guide fossil

NOUN /ɡaɪd_'fɑsəl/
12 LETTERS · STARTS WITH G

guide fossil is a valid 12-letter word worth 16 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
G2U1I1D2E1F4O1S1S1I1L1
2 + 1 + 1 + 2 + 1 + 0 + 4 + 1 + 1 + 1 + 1 + 1 =16 PTS
DOUBLE WORD → 32TRIPLE WORD → 48
MEANING

What does guide fossil mean?

NOUN · 1 SENSE
1

A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found.

SYNONYMS
BROADER