extinctual
extinctic
extinctor
end-Triassic mass extinction
extinction level event
extinction event
existential
extinctness
semiextinct
extinctively
endangered
semiextinction
die out
imperiled
die off
extinctionist
quenching
extinct
ruined
washed-up
done for
sunk
undone
didine
sleeping language
nonextinction
mylodontid
expiration
End-Permian Extinction
Permian-Triassic mass extinction
Great Dying
end-Cretaceous
go out
tsunamic
threatened species
phylogenomic
omnicide
big five
extinction
ruinlike
extinguish
kill off
killer
mass extinction event
ophiological
endangered species
coextinction
paleobiological
diastaltic
pathoetiological