IndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found TraceFossilA fossil thatshows theactivities ofancientorganisms AbsoluteAgehe exact age therock given asthe number ofyears since therock formedstromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthIgneousRockvolcanicrock wherefossils arenot foundExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers FaultA breakin Earth'scrustFossilRecordAll the fossilscollected andstudied bypaleontologistsFossilRemains orimpression of aprehistoricorganismpreserved inrockMoldFossilFossilizedimprint insediment inthe shape ofan organism CastFossilSolid copy ofthe shape ofan organism GeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history OverturnedFoldsThe onlycase whereyounger rocklayers canend upPaleontologistA scientistwhostudiesfossilsPeriodThe secondshortest unitof geologicaltime (behindepochs) EraThe secondlargestdivision ofgeologicaltime PreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.CarbonFilmThin film of carbonthat forms as gasesand liquids areforced out of thebody due topressure and heat UnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord EvolutionThe changein livingthings overmanygenerations SedimentaryRockThe onlytype of rickwhere fossilsare foundPetrifiedFossilWhensedimentreplaces allor part of anorganism GorgonopsidThe apexpredator of thepermian period;Had mammal-like teethThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens Law ofSuperpositionLaw stating thatlower rocklayers are olderand upper rocklayers areyounger EonsLongeststretch ofgeologictimeRelativeAgeThe age ofrocks ascompared toother rocks IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface IndexFossila fossil that isuseful for datingand correlatingthe strata inwhich it is found TraceFossilA fossil thatshows theactivities ofancientorganisms AbsoluteAgehe exact age therock given asthe number ofyears since therock formedstromatolitesFossilizedsingle-celledorganisms thatstill remain theoldest fossils onEarthIgneousRockvolcanicrock wherefossils arenot foundExtinctRefers to agroup of relatedorganisms thathas died out andhas no livingmembers FaultA breakin Earth'scrustFossilRecordAll the fossilscollected andstudied bypaleontologistsFossilRemains orimpression of aprehistoricorganismpreserved inrockMoldFossilFossilizedimprint insediment inthe shape ofan organism CastFossilSolid copy ofthe shape ofan organism GeologicTimeScaleA record ofthe geologicevents andlife forms inEarth’s history OverturnedFoldsThe onlycase whereyounger rocklayers canend upPaleontologistA scientistwhostudiesfossilsPeriodThe secondshortest unitof geologicaltime (behindepochs) EraThe secondlargestdivision ofgeologicaltime PreservedRemainsWhen parts ofthe originalorganismremain, likeamber, ice, tar,mummies, etc.CarbonFilmThin film of carbonthat forms as gasesand liquids areforced out of thebody due topressure and heat UnconformityBreak in timedue to erosionin an otherwisecontinuous rockrecord EvolutionThe changein livingthings overmanygenerations SedimentaryRockThe onlytype of rickwhere fossilsare foundPetrifiedFossilWhensedimentreplaces allor part of anorganism GorgonopsidThe apexpredator of thepermian period;Had mammal-like teethThrinaxodonOne of the firstmammals toexist, hadseveral reptiliancharacteristicsExtrusionAn igneous rocklayer that formswhen lava flowsonto Earth’ssurface andhardens Law ofSuperpositionLaw stating thatlower rocklayers are olderand upper rocklayers areyounger EonsLongeststretch ofgeologictimeRelativeAgeThe age ofrocks ascompared toother rocks IntrusionAn igneous rocklayer that formswhen magmahardens beneathEarth’s surface 

Geologic Time Bingo - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. a fossil that is useful for dating and correlating the strata in which it is found
    Index Fossil
  2. A fossil that shows the activities of ancient organisms
    Trace Fossil
  3. he exact age the rock given as the number of years since the rock formed
    Absolute Age
  4. Fossilized single-celled organisms that still remain the oldest fossils on Earth
    stromatolites
  5. volcanic rock where fossils are not found
    Igneous Rock
  6. Refers to a group of related organisms that has died out and has no living members
    Extinct
  7. A break in Earth's crust
    Fault
  8. All the fossils collected and studied by paleontologists
    Fossil Record
  9. Remains or impression of a prehistoric organism preserved in rock
    Fossil
  10. Fossilized imprint in sediment in the shape of an organism
    Mold Fossil
  11. Solid copy of the shape of an organism
    Cast Fossil
  12. A record of the geologic events and life forms in Earth’s history
    Geologic Time Scale
  13. The only case where younger rock layers can end up
    Overturned Folds
  14. A scientist who studies fossils
    Paleontologist
  15. The second shortest unit of geological time (behind epochs)
    Period
  16. The second largest division of geological time
    Era
  17. When parts of the original organism remain, like amber, ice, tar, mummies, etc.
    Preserved Remains
  18. Thin film of carbon that forms as gases and liquids are forced out of the body due to pressure and heat
    Carbon Film
  19. Break in time due to erosion in an otherwise continuous rock record
    Unconformity
  20. The change in living things over many generations
    Evolution
  21. The only type of rick where fossils are found
    Sedimentary Rock
  22. When sediment replaces all or part of an organism
    Petrified Fossil
  23. The apex predator of the permian period; Had mammal-like teeth
    Gorgonopsid
  24. One of the first mammals to exist, had several reptilian characteristics
    Thrinaxodon
  25. An igneous rock layer that forms when lava flows onto Earth’s surface and hardens
    Extrusion
  26. Law stating that lower rock layers are older and upper rock layers are younger
    Law of Superposition
  27. Longest stretch of geologic time
    Eons
  28. The age of rocks as compared to other rocks
    Relative Age
  29. An igneous rock layer that forms when magma hardens beneath Earth’s surface
    Intrusion