Panbiogeography: The New World |
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Page 31
Between Mid - Cretaceous and Late Cretaceous , however , we have positive
elements to judge because it is by then that were laid down the major massings
of life ; such as extending into unbroken major continuity to this day we can assay
...
Between Mid - Cretaceous and Late Cretaceous , however , we have positive
elements to judge because it is by then that were laid down the major massings
of life ; such as extending into unbroken major continuity to this day we can assay
...
Page 190
It is even less clear why mammals , having been in existence some 100 million
years before the Palaeocene ( i.e. , the whole span : Triassic ( age of fossilization
! ) Palaeocene ) should have waited that long before effecting one " Major and ...
It is even less clear why mammals , having been in existence some 100 million
years before the Palaeocene ( i.e. , the whole span : Triassic ( age of fossilization
! ) Palaeocene ) should have waited that long before effecting one " Major and ...
Page 794
uprooted overland as the aftermath of major tectonic and physiographic events . "
Judged by standards of time easily accessible to man this sounds like a great ,
sudden catastrophe . Spread , however , over the span of some twenty to thirty ...
uprooted overland as the aftermath of major tectonic and physiographic events . "
Judged by standards of time easily accessible to man this sounds like a great ,
sudden catastrophe . Spread , however , over the span of some twenty to thirty ...
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