ORDER AND SUCCESSION OF LIFE,
ESPECIALLY AS REFERRED TO IN THE FOLLOWING SKETCHES.
The subjoined tabulation exhibits proximately the stages at which the great ascending sections of Plants and Animals make their first appearance in the stratified systems :-
Man. Plants and animals of
existing species and distribu-
tion; a few genera recently
extinct.
Placental mammals. Plants
and animals of existing or-
ders; a large proportion,
however, of extinct genera
and species.
Marsupial mammals, birds,
reptiles, fishes, shellfish,
crustacea, zoophytes; palms,
coniferæ, ferns, lycopods,
sea-weeds.
Marsupial mammals, birds,
reptiles, fishes, shellfish,
crustacea, zoophytes; palms,
cycads, coniferæ, ferns, ly-
copods, sea-weeds.
Reptiles, fishes, shell-fish, crus-
tacea, zoophytes; coniferæ,
ferns, lycopods, sea-weeds.
Fishes, shell-fish, crustacea,
zoophytes; ferns, lycopods,
sea-weeds.
Shell-fish, crustacea,
tracks, zoophytes; sea-weeds.
Crustacea, worm-burrows, and
zoophytes.
Traces of lowly or foramini-
feral organisms.
| RANGE OF VERTEBRATA. RANGE OF INVERTEBRATA.