. Elementary biology; an introduction to the science of life . Jurassic Triassic ' "^ ~ •"_"! Permian Carbon- iferous Devonian Silurian IMfan Mastodon Univalves Conifers (Angiosperms) (Tapir) Nummulite (Birds) Univalve (Palms) Pearl mussel Bivalves Ammonites Crustacea Cycads Winged reptiles Crinoid Gryphaea Crocodile Bivalves Lamp shells Insects Amphibia Tree ferns Ganoid fish Starfish Trilobites Sfjonge spicules Graptolites of jellyfish Fig. 248. Geology and evolution In the oldest rocks no remains of plant or animal life are to be found. In each succeed- ing age of the earth m
. Elementary biology; an introduction to the science of life . Jurassic Triassic ' "^ ~ •"_"! Permian Carbon- iferous Devonian Silurian IMfan Mastodon Univalves Conifers (Angiosperms) (Tapir) Nummulite (Birds) Univalve (Palms) Pearl mussel Bivalves Ammonites Crustacea Cycads Winged reptiles Crinoid Gryphaea Crocodile Bivalves Lamp shells Insects Amphibia Tree ferns Ganoid fish Starfish Trilobites Sfjonge spicules Graptolites of jellyfish Fig. 248. Geology and evolution In the oldest rocks no remains of plant or animal life are to be found. In each succeed- ing age of the earth more and more highly developed plant and animal forms lived, as shown by the remains of the organisms preserved in the rocks
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology
