Week 12 Flashcards
1
Q
Ordovician extinction
A
only effected marine animals since terrestrial life was just starting
2
Q
Devonian extinction
A
limited to marine organisms
3
Q
Permian extinction
A
largest one and decimated marine invertebrates
-killed insects, synapsids, anapsid
4
Q
Triassic extinction
A
killed most pseudosurchian and most synapsids
5
Q
Cretaceous extinction
A
killed all non-avian dinosaurs
-pterosuars
-corals, plankton and ammonites
-land plants
-prbably from meteor impact
6
Q
tektites
A
from meteors heating up small rocks into one
7
Q
cenotes
A
limestone sinkholes found in Mexico by crater
8
Q
Siberian volcano activity
A
could have been linked to the Permian mass extinction with global warming killing the animals
