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Permian–Triassic extinction event 252 Ma Large igneous province (LIP) eruptions [ 23 ] from the Siberian Traps , [ 24 ] an impact event (the Wilkes Land Crater ), [ 25 ] an Anoxic event , [ 26 ] an Ice age , [ 27 ] or other possible causes
Extinct due to destruction of nesting habitat by introduced goats, and predation by cats. [56] Zacatecas Worthen's sparrow: Spizella wortheni browni: Northwest Zacatecas, Mexico Last recorded in 1961. Extinct due to habitat loss to agriculture, overgrazing and erosion by cattle herding, and decline of native herbivores which maintained the bird ...
The extinct Beothuks of Newfoundland made pudding out of the eggs of the great auk. [19]: 313 The Dorset Eskimos also hunted it. The Saqqaq in Greenland overhunted the species, causing a local reduction in range. [50] The only known illustration of a great auk drawn from life, Ole Worm's pet, received from the Faroe Islands, 1655
Despite the world's last captive thylacine dying in 1936, the secretive animal wasn't declared extinct until 1986. More recently in 2007 the Baiji dolphin , a rare river dolphin native to China ...
Extinction is the termination of a taxon by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
Steller's sea cow (Hydrodamalis gigas) is an extinct sirenian described by Georg Wilhelm Steller in 1741. At that time, it was found only around the Commander Islands in the Bering Sea between Alaska and Russia; its range extended across the North Pacific during the Pleistocene epoch, and likely contracted to such an extreme degree due to the glacial cycle.
The largest extinction was the Kellwasser Event (Frasnian-Famennian, or F-F, 372 Ma), an extinction event at the end of the Frasnian, about midway through the Late Devonian. This extinction annihilated coral reefs and numerous tropical benthic (seabed-living) animals such as jawless fish, brachiopods, and trilobites.
The taxonomic status of this extinct form cannot be resolved until more material is found, however. Anatini – dabbling ducks Extinct species of extant genera. Mareca – wigeons Amsterdam wigeon, Mareca marecula (Amsterdam Island, South Indian Ocean, c. 1800) Anas. Saint Paul Island duck, Anas sp. (St. Paul Island, South Indian Ocean, c. 1800)
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