The Encyclopedia Americana, Količine 1–30Bernard S. Cayne Grolier, 1981 |
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Zadetki 1–3 od 76
Stran 142
... Plants . - A whole plant is very rarely found fossilized . It is not uncommon to find the complete skeleton of a fish or shell of a mollusk , but plants , which grow mainly on land , are ordinarily preserved only as fragments . The main ...
... Plants . - A whole plant is very rarely found fossilized . It is not uncommon to find the complete skeleton of a fish or shell of a mollusk , but plants , which grow mainly on land , are ordinarily preserved only as fragments . The main ...
Stran 144
... plants to which the living Lyco- podium and Selaginella belong . These were for the most part small plants with dichotomously branched stems covered with small leaves , some of which bore simple rounded sporangia in their axils ...
... plants to which the living Lyco- podium and Selaginella belong . These were for the most part small plants with dichotomously branched stems covered with small leaves , some of which bore simple rounded sporangia in their axils ...
Stran 146
... plants during the Devonian . It is difficult to com- prehend how a plant of such advanced structural organization as ... plants that can be found in Carboniferous and later rocks , Devonian plants are scarce , and the seeming ab- sence ...
... plants during the Devonian . It is difficult to com- prehend how a plant of such advanced structural organization as ... plants that can be found in Carboniferous and later rocks , Devonian plants are scarce , and the seeming ab- sence ...
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19th century American ancient animals Arab artists atoll baryons became birds bone British called Canal capital Carboniferous Cenozoic central Chinese Church College color developed Devonian disease early east England English Europe feet fossils France French German Greek important inches Indian industry island Italy John king known Lake land later London manufacture ment mesons miles modern mountain Museum National Ocean Ordovician organization Ottawa Oxford oxygen oyster Pacific Pacific Ocean painter painting Pakistan PALEOBOTANY Paleolithic Paleolithic art Paleozoic Palestine palm Panama Panama Canal Panama City paper Paraguay parasites Paris Park particles period plants population president produced province pteridosperms pulp region River rocks Roman Rome served Silurian species sporangia square miles style tion treaty ture types United University vols western World War II York