1st piece of Asteroid WMPH Remnant Hits Earth

Name: Ordovician-Silurian extinction

Millions of Yrs Ago: 440

Percent of animal families died out:  25% marine family’s
                                                           60% marine genera
                                                           Vertebrates have yet evolved

Estimated Size of Asteroid: Unknown

Impact Caused: - Drop in sea levels and formation of glaciers as temperature of earth warmed again glaciers melted and sea level rose causing floods world wide.
Impact Crater Located:  Unknown but extinction occurred mostly in tropical areas around the equator.

2nd piece of Asteroid WMPH Remnant Hits Earth

Name: Late Devonian extinction

Millions Of Yrs Ago: 360-364

Percent of animal families died out:   22% marine familes
                                                            57% marine genera
                                                            Vertebrate Deaths Unclear

Estimated Size Of Asteroid: Unknown

Impact Caused:  Rise in volcanic activity
                          Rise in global temperatures

Impact Crater Located:  Extinction Occurred at the Frasnian-Famennian boundary

3rd Piece of Asteroid WMPH Remnant Hits Earth
(worlds biggest global extinction)

Name: Permian-Triassic extinction

Millions Of Yrs Ago: 251

Percent of animal families died out:   95% of all living species
                                                            53% of marine families
                                                            84% marine genera
                                                            70% land species

Estimated Size Of Asteroid: Over 10-15 miles wide

Impact Caused: Rise in volcanic activity worldwide
                        Loss of oxygen in oceans
                        Rise in global temperatures
                        Tsunamis hundreds of meters high

Impact Crater Located:  Unknown

4th piece of Asteroid WMPH Remnant Hits Earth

Name: End Triassic extinction

Millions Of Yrs Ago: 199- 213

Percent of animal families died out:   22% marine families’
                                                            52% marine genera
                                                            Vertebrate Deaths Unclear

Estimated Size Of Asteroid: A few miles wide

Impact Caused: Massive floods of Lava erupting from the atlantic (triggers the opening of the Atlantic ocean
Global warming

Impact Crater Located: Unknown but rocks from eruption have been found in the eastern United States, eastern Brazil, North Africa and Spain.

Last Piece of Asteroid WMPH Remnant Hits Earth

Name: Cretaceous-Tertiary extinction

Millions Of Yrs Ago: 65 million years.

Percent of animal families died out:   16% marine family’s
                                                            47% marine genera
                                                            18% land animal families.

Estimated Size Of Asteroid: Several miles wide

Impact Caused: Climate Change
                          Flood like volcanic eruptions

Impact Crater Located: Yucatan Peninsula and beneath the Gulf of Mexico