information about Permian–Triassic extinction event field
Field Hierarchy
Parent | |||
---|---|---|---|
Medicine 49.4M papers | Sociology 13.3M papers | Population 4.5M papers | Environmental health 3.9M papers |
Demography 3M papers | Biological dispersal 93.8k papers | Extinction event 8,365 papers | |
Current | |||
Permian–Triassic extinction event 1,359 papers | |||
Child |
Trends
Notes
History