paleo-pric - 12/19/11 paleo-pric 1. PALEONT OLOGY 1.1 T he...

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12/19/11 paleo-pric 1/9 www2.fiu.edu/Alongoria/gly1101/paleo-pric.html 1. PALEONTOLOGY 1.1 The beginningV of paleonWolog\ 2. FOSSILIZATION 2.1. FoVVilV 2.1.1 Bod\ FoVVilV 2.1.1.1 MoldV and CaVWV 2.2. TUace foVVilV 2.3. The meaning of foVVilV 2.4. The XVe of foVVilV 2.4.1 EyolXWion 2.4.2. PlaWe WecWonicV 2.4.3. PaleogeogUaph\-paleoenyiUonmenWV 2.4.4. DaWing UockV 2.5. T\peV of foVVil pUeVeUyaWion 2.5.1. OUiginal pUeVeUyaWion of haUd paUWV 2.5.2. AlWeUed haUd paUWV 2.5.3. PeUmineUali]aWion 2.5.4. CaUboni]aWion 2.5.4. RecU\VWalli]aWion 2.5.6. ReplacemenW 2.6. unalWeUed VofW paUWV 2.6.1. PUoWecWion fUom o[\gen 2.6.2. FUee]ing 2.6.2 Deh\dUaWion 2.7. TUace foVVilV 2.7.1. TUackV 2.7.2. TUailV 2.7.3. BXUUozV 2.7.4. BoUingV
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12/19/11 paleo-pric 2/9 www2.fiu.edu/Alongoria/gly1101/paleo-pric.html 3. THE GEOLOGIC TIME SCALE (RelaWiYe Time) Take tour: Visit the Web Geological Time Machine at UCMP-Berkele\ Universit\ 3.1. SXbdiYiVion of Whe geologic Wime. IW iV Whe VXbdiYiVion of Whe geologic Wime (Wime baVed on Whe eYolXWionaU\ WUendV of foVVilV) inWo XniWV of diffeUenW dXUaWion. The pXUpoVe of VXbdiYiding Whe Wime fUom Whe oUigin of EaUWh Wo pUeVenW, WhaW iV, fUom 4.6 b.\. . (billion \eaUV) Wo pUeVenW, iV Wo Uecogni]e VmalleU Wime inWeUYalV Zhich define epiVode of Whe hiVWoU\ of eYolXWion of life on EaUWh. TheVe diYiVionV aUe knoZn aV ChUonoVWUaWigUaphic XniWV oU RelaWiYe Time we Uecogni]e Vi[ oUdeUV of ChUonoVWUaWigUaphic XniWV, fUom laUgeU Wo VmalleU: uniWV baVed on EYolXWion (RelaWiYe Wime) uniWV baVed on nXmeUical aVVignaWion (AbVolXWe Wime) 1VW OUdeU: EonoWhem Eon 2nd OUdeU: EUaWhem EUa 3Ud OUdeU: S\VWem PeUiod 4Wh OUdeU: SeUieV Epoch 5Wh OUdeU: SWage Age 6Wh OUdeU: ChUono]one ChUon TheVe XniWV ZeUe Uecogni]ed WhUoXghoXW Whe ZoUk of paleonWologiVW ZoUking in EXUope foU Whe laVW WhUee cenWXUieV.
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12/19/11 paleo-pric 3/9 www2.fiu.edu/Alongoria/gly1101/paleo-pric.html In recent years, after the recognition of radioactivity, and radioactive decay, geologist recognized that isotopes could be used to numerically dates, the so-called "absolute time units" the subdivision based on the history of evolution of life on Earth, resulting in the establishment of twin or parallel set of units known as Geochronologic units, these geochronologic units are also referred to as µabsolute ages¶ because they are expressed in numbers, that is, they are the numerical values assigned to the former Chronstratigraphic units. 3.2. Definition of the units based on the evolution of life on Earth: 3.2.1. Eonothem: "Eon" also means any span of one billion years. The largest division of geologic time, including several eras and lasting for hundreds of millions or billions of years. Originally there were only two eons, the Precambrian and the Phanerozoic, because of the long span included in Precambrian, now we recognize two separate eonothems, the Archean (previously Archeozoic) and the Proterozoic. 3.2.2. Erathem: A geologic division that includes several periods, but smaller than an eon. Generally
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This note was uploaded on 12/19/2011 for the course HISTORY 1101 taught by Professor Josef.longoria during the Fall '10 term at FIU.

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paleo-pric - 12/19/11 paleo-pric 1. PALEONT OLOGY 1.1 T he...

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