| → are similarly placed 1866 |
| are similarly absent 1859 1860 1861 |
| occur in the same order 1869 1872 |
|
| → stages of the 1861 1866 |
| stages of the widely separated 1859 1860 |
| OMIT 1869 1872 |
|
| → of the tertiary 1866 |
| tertiary 1859 1860 1861 1869 1872 |
|
| → distant parts of 1859 1860 1861 1866 |
| OMIT 1869 1872 |
|
| → change at distant points 1859 1860 1861 1866 |
| at distant points change 1869 1872 |
|
| → still living sea-shells; 1859 1860 1861 1866 |
| sea-shells all still living; 1869 1872 |
|
| → hundred-thousandth year, 1859 1860 1861 1866 |
| ten-thousandth year, 1869 |
| to the same century, 1872 |
|
| → which live at the present day 1859 1860 1861 1866 |
| now living 1869 1872 |
|
|
mere superficial sculpture.
other forms, which are not found in the Chalk of
but which occur in the formations either above or below,
→are similarly placed
at these distant points of the world. In the several successive palæozoic formations of Russia, Western
and North America, a similar parallelism in the forms of life has been observed by several
so it is, according to Lyell, with the
European and North American tertiary deposits. Even if the few fossil species which are common to the Old and New Worlds
kept wholly out of view, the general parallelism in the successive forms of life, in the
→stages of the
palæozoic and
→of the tertiary
would still be manifest, and the several formations could be easily correlated. |
|
| These observations, however, relate to the marine inhabitants of
→distant parts of
the world: we have not sufficient data to judge whether the productions of the land and of fresh water
→change at distant points
in the same parallel manner. We may doubt whether they have thus changed: if the Megatherium, Mylodon, Macrauchenia, and Toxodon had been brought to Europe from La Plata, without any information in regard to their geological position, no one would have suspected that they had
with
→still living sea-shells;
but as these anomalous monsters
with the
and Horse, it might at least have been inferred that they had lived during one of the
tertiary stages. |
|
| When the marine forms of life are spoken of
having changed simultaneously throughout the world, it must not be supposed that this expression relates to the same
or
→hundred-thousandth year,
or even that it has a very strict geological sense; for if all the marine animals
→which live at the present day
in
|
