paleozoic
IPA: peɪɫiʌzˈoʊɪk
Root Word: Paleozoic
noun
- (geology) The Paleozoic era.
adjective
- (geology) Of a geologic era within the Phanerozoic eon that comprises the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian periods from about 542 to 250 million years ago, from the age of trilobites to that of reptiles.
- Alternative form of Paleozoic [(geology) Of a geologic era within the Phanerozoic eon that comprises the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian periods from about 542 to 250 million years ago, from the age of trilobites to that of reptiles.]
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Examples of "paleozoic" in Sentences
- And I am not sure that arthropod sizes peaked in the paleozoic.
- ‘Waldheimia’ less embryonic, or more specialized; than the paleozoic ‘Spirifer’; or the existing
- Add to that the fact that different species only exist in certain spans of time, such as dinosaurs in the mesozoic, or trilobites in the paleozoic.
- Geologically the Hajar and Musandem Mountains are comprised of paleozoic, metamorphic, and igneous rocks formed at the site of a mid-oceanic ridge in the Indian Ocean.
- Unless you are involved in academic research CO2 levels in the paleozoic are irrelevant because so many other important variables affecting climate were different from today.
- But these refashioned Knicks are not very fun to watch, and nowhere near a lock as a playoff team, not even in a junk division where the sub-.500, paleozoic Celtics sit in second place.
- It also lies on a Precambrian bedrock peneplain, with deep paleozoic sediments, but unlike the boulder-rich moraine of the archipelago, the moraines of Hudson Bay are boulder-poor, owing to softer rocks.
- As much as any destination, it is these isolated periods in untried hotel rooms, in paleozoic canyons, in disintegrating palaces and empty service-station restaurants that facilitate the underlying point of our journeys.
- You are absolutely correct that over the time period that life has existed on earth in complex, multicellular, differentiated-tissue forms (the paleozoic through the cenozoic) co2 concentrations have been much higher than they have been recently.
- But then, on careful consideration of the facts, the objection arises that the stalk, calyx, and arms of the paleozoic Crinoid are exceedingly different from the corresponding organs of a larval ‘Comatula’; and it might with perfect justice be argued that ‘Actinocrinus’ and
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