All Mass Extinction Events

The Late Ordovician mass extinction (LOME), sometimes referred to as the end-Ordovician mass extinction or the Ordovician-Silurian extinction, is the first of the "big five" major mass extinction events in Earth's history, occurring roughly 445 million years ago (Ma). It is often considered to be the

The Late Devonian mass extinction, also known as the Kellwasser event, was a mass extinction event which occurred around 372.15 million years ago, at the boundary between the Frasnian and Famennian ages of the Late Devonian period.

The Permian-Triassic extinction event, colloquially known as the Great Dying, was an extinction event that occurred around the boundary between the Permian and Triassic geologic periods, and with them the Paleozoic and Mesozoic eras.

The Triassic-Jurassic (Tr-J) extinction event, often called the Triassic-Jurassic mass extinction (TJME) or end-Triassic extinction, marks the boundary between the Triassic and Jurassic periods, 201.4 million years ago.

The Cretaceous-Paleogene (K-Pg) extinction event, formerly known as the Cretaceous-Tertiary (K-T) extinction event, was a major mass extinction of three-quarters (75%) of the plant and animal species on Earth which occurred around 66 million years ago.

The Toarcian extinction event, also called the Pliensbachian-Toarcian extinction event, the Early Toarcian mass extinction, the Early Toarcian palaeoenvironmental crisis, or the Jenkyns Event, was an extinction event that occurred during the early part of the Toarcian age, approximately 183 million years ago, during

The Eocene-Oligocene extinction event, also called the Eocene-Oligocene transition (EOT), is the transition between the end of the Eocene and the beginning of the Oligocene, an extinction event and faunal turnover occurred from around 33.9 to 33.4 million years ago.