Mass Extinction Events 0.0 / 5 ? BiologyMass Extinction EventsUniversityAll boards Created by: legoleoCreated on: 23-05-19 16:00 When was the end-Ordovician event? 450 Ma 1 of 15 When was the end-Permian event? 215 Ma 2 of 15 When was the Triassic event? 200 Ma 3 of 15 Where is the bolide impact crater? Ecuador/Mexico 4 of 15 When was the Oxygen Catastrophe? 2.4 Ba 5 of 15 When was the Snowball Earth phenomenon? 850-650 Ma 6 of 15 How many species were wiped out in the Triassic event? >50% of all species 7 of 15 How many species were wiped out in the K/T? 75% of all species 8 of 15 What caused the Permo-Triassic/ End Permian extinction event? Volcanism: the Siberian Traps 9 of 15 What were the hardest-hit species of the Ordovician mass extinction event? trilobites, bivalves, echinoderms 10 of 15 What were the hardest-hit species of the K/T event? belemnites, ammonites, pterosaurs, dinosaurs 11 of 15 What were the hardest-hit species of the Devonian event? agnathan fish, placoderm fish, conodonts 12 of 15 What were the hardest-hit species of the Permo-Triassic/Permian event? insects, brachiopods, ammonites, trilobites 13 of 15 What were the hardest-hit species of the Triassic event? conodonts, amphibians 14 of 15 Mass extinction is defined by... over 60% of all species going extinct within 1 million years 15 of 15
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