Historical Biogeography

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G I H P D L X V Y H P E Y R R S J D O D A
D H F N X R D R L E I C F Y H I I E R V L
C D N U G M L U K V G G N M M Y Q T I E I
A D J P W X A Q R O P Q S U M S O A G A J
M A H W U M D D I L O S J B O I R E I X O
B O P J L P I L G U V C C U B D A R N R A
R N A M T I G B S T L K T B L R F C O U J
I E A M R W P D P I E K U F W O S H F B W
A I H A I T C Y P O A U D Y T M R T L B N
N C C K F W O V N N Y G L N U A W R I G U
E Q R F D C N M Y O L S F H Q J L A F O G
X V P D P Q E E R F D O G B E X G E E U U
P H D O G J K B S H O B L B A Q S G O G W
L E E U D V M S T O Y I A K R C F N N O R
O W W J T R M H Y M I U B T C D M A E J Y
S G U X A G L C X I V W A X C O V B A O D
I B Y V A T I O E N V I L E Y F O G R J X
O S P O V T B T I I X E C E E E B I T R N
N V L W K I W J I D X H C W R D C B H L L
V T L Q G J O X V S P O Y Q Y J Y T I G Q
Q T Y R K M A J H J A M G N D E Q A C P U

Clues

  • 3.8-3.9bn years (6, 2, 4, 2, 5)
  • 4.6bn years (3, 4, 5, 7)
  • 540Ma (8, 9)
  • 5Ma (Quaternary) (9, 2, 8)

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