_
222
THE BIOLOGŸ OF FISHES
‘
north and south; but according to Wegener’s theory
greater depth in the west should mean that the
masses haVe moved away from Americ'a, not
fr0m Europe and Africa, as he maintains.
Some, curi0us,
points in the distribution ofshes might be explained
Ï:
this way.
Ï
:.ÏŸ'
'
.
This isa minor point, however ; the main thing is, thàt‘_r ÊfÂ
America is supposed to have been actually in touch
Africa and Europe during the earlier epochs.
the middle portion and the extreme south this connection
was maintained until the Tertiary period. The
_.
in the south between Africa and South America
_
_
previous to the‘Eocene and may have been completed in
ÏÏ
f
:
Chalk period; bUt the separation of Ireland and Scotlaiidf“
…
from Newfoundland and South Greenland did not takej=f
place
during the Great Glacial
'
,
{:periodççTh‘eïœntqùïs
coast lines from north to
' :,_
’
south as
the
of the coalmeasures, both
in the northern
from Pittsburg across Newfound— Î’
î
_
; land to Britain, Î
the Caspian, and in"
ff
:
-
southern hen'sphei‘ebetween Natal and the Andes, as well
as many other phySiéàl_ data,
in
;
this earlier
of the continents.
The
:
'
dietance of South America from“Àfrica indicates that the
È
separation took place earlier there than in the north.
,
'
;f;f
_
'The similarity Ofϑthe
and fosssm
:
"
North America andEurope,‘fparchlarly_ Great Britain;can
»
thus bplndnmplmnthn
thattheAanüccoversanancmntlandhndgeoconuent
Thmwltmmnhwvmtnd
â
-
iÎ:;.3516 mass ofland formerly 6X1stedm ftliëfiÀântieî to” the 5Ï' ŸÎ
î wtndthfth1bP1
a:
Thitbtwthttnthta
:
ofAfuca areexplænedmthesamewayTheLemunan
: landbrldge9fearhefaUth0rswasmreahtyaccording to
Ï Wegeneï thedlrecteenswnof80uthemInchato
MadagascarThs connectwnals<9persmtedtlthe
îbeglnmngOftheTelüafYPeodwhenïndmamtwereshd