Dictionary » P » Paleozoic



(Science: geology) Of or pertaining to, or designating, the older division of geological time during which life is known to have existed, including the silurian, devonian, and Carboniferous ages, and also to the life or rocks of those ages. See chart of geology.

Origin: Paleo- _ gr. Life, fr. To live.

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Biology HW HELP?

... time machine and travel to the past. When you step out of the time machine, you see dinosaurs, but no flowing plants, You are probably in: (A) the Paleozoic Era in the Devonian period (B) e Paleozoic Era in the Permian period (C) the Mesozoic Era in the Cretaceous period (D) the Mesozoic Era in ...

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by safasoliman
Tue May 25, 2010 1:27 am
Forum: General Discussion
Topic: Biology HW HELP?
Replies: 3
Views: 6625

Re: Ancestor or Contemporary?

... in Evolution What the Fossils Say and Why it Matters, Donald R. Prothero, 2007. Examples include Fusulind evolution during the late paleozoic, foraminifera in the Pliocene and Pleistocene and early Miocene, and radiolarian evolution during the late Cenozoic. For research papers look ...

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by robsabba
Thu Apr 01, 2010 2:40 pm
Forum: Evolution
Topic: Ancestor or Contemporary?
Replies: 3
Views: 3081

Anthropogenic global warming?

... during the Past 800 Ma." Chem Geol 161 (1999): 103-125. Popp, B. N., R. Takigiku, J. M. Hayes, J. W. Louda, and E. W. Baker. " The Post-Paleozoic Chronology and Mechanisms of 13C Depletion in Primary Marine Organic Matter." Am J Sci 289 (1989): 436-454. Well, it's a list of potentially ...

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by blcr11
Tue May 29, 2007 8:17 pm
Forum: Ecology
Topic: Anthropogenic global warming?
Replies: 188
Views: 150785

Cambrian Explosion

... one is a graph about the temperature and amout of Carbon di oxide from early times of earth and the other is the map of earth during Cambrian,Paleozoic,Ordovician.

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by David George
Thu Aug 24, 2006 3:00 pm
Forum: Evolution
Topic: Cambrian Explosion
Replies: 0
Views: 1912

Help figuring out what animals these are.

... what was given. 1. All members of this group are marine animals, the lineage has existed for at least 600 my and was especially important in the Paleozoic. The group is characterized by a water-vascular system, a skeleton consisting of calcite plates and all adult, living members show a pentameric ...

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by Biology2006
Fri Jun 09, 2006 1:13 pm
Forum: Zoology Discussion
Topic: Help figuring out what animals these are.
Replies: 11
Views: 7749
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