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Otodus megalodon (/ ˈ m ɛ ɡ əl ə d ɒ n / MEG-əl-ə-don; meaning "big tooth"), commonly known as megalodon, is an extinct species of giant mackerel shark that lived approximately 23 to 3.6 million years ago (Mya), from the Early Miocene to the Early Pliocene epochs.
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The proportion of extinct large mammal species (more than or equal to 10 kg (22 lb)) in each country during the last 132,000 years, only counting extinctions earlier than 1000 years BP. The Late Pleistocene saw the extinction of many mammals weighing more than 40 kilograms (88 lb), including around 80% of mammals over 1 tonne.
Last collected in 1970. Extinct due to habitat destruction and water pollution. [92] Thicktail chub: Gila crassicauda: California Central Valley and San Francisco Bay: Last collected in 1957. Extinct due to the conversion of the Central Valley to intensive agriculture, marsh draining, channelization of rivers and introduction of extotic fish ...
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With the end of 2018 comes the near-certain reality that some critters, after millions of years of existence on Earth, are gone for good. There's little question that humanity's continued ...
The American mastodon had its last recorded occurrence in the earliest Holocene around 11,000 years ago, which is considerably later than other North American megafauna species. Today, the American mastodon is one of the most well-known fossil species in both academic research and public perception, the result of its inclusion in American ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 February 2025. Extinct genus of saber-toothed cat Smilodon Temporal range: Early Pleistocene to Early Holocene, 2.5–0.0082 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Mounted S. populator skeleton at Tellus Science Museum Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata ...