CrETaCEous PEriod (145.5-65.5 Ma) · 2020. 8. 21. · Cretaceous Period rocks from Winton in...
Transcript of CrETaCEous PEriod (145.5-65.5 Ma) · 2020. 8. 21. · Cretaceous Period rocks from Winton in...
Large dinosaurs dominated the landscape. The firstfloweringplantsappeared.Insectsdiversifieddramatically. Pollinating insects such as bees appeared:anexampleofcoevolution.
GondwanaseparatedintoWestGondwana (currentdaySouthAmerica,Africa,MadagascarandIndia)andEastGondwana(currentdayAustraliaandAntarctica).australia began to separate from antarcticaandcommenceitsjourneynorthwards.
Attheendofthisperiod,theEarth’s 5th and most recent major mass extinctionoccurred:75%ofallspeciesvanished,includingthedinosaurs.Atthis time, a large meteorite hit Mexico’s Yucatan Peninsula,andtherewerehugevolcaniceruptionsinIndia.Thereisstilldebateabouttheroleofthese events in the mass extinction event.
CretaceousPeriodrocksfromWintonincentralQueensland containthousandsofpreserveddinosaurfootprintsthoughtto have been created during a dinosaur stampede.
CrETaCEous PEriod (145 .5 -65 .5 Ma)
Footprints of the dinosaur stampede that occurred in Winton, Queensland during the Cretaceous Period.
09-3978-37
Cretaceous aged rocks 0 500 km
09-3978-37
Cretaceous aged rocks 0 500 km
Cretaceous rocks and resources in australia
Natural resources found in Cretaceous age rocks include oil, gas, nickel, cobalt and opals.
Cretaceous Timescale
10cm