euxinia
Noun
Meaning
euxinia
(biology, geology) A euxinic environment, especially at critical times in the geologic past.
Synonyms
Examples
Anoxia seeAlso Evidence for widespread ocean anoxia (severe deficiency of oxygen) and euxinia (presence of hydrogen sulfide ) is found from the Late Permian to the Early Triassic.
Hypercapnia best explains the selectivity of the extinction, but anoxia and euxinia probably contributed to the high mortality of the event.