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North American Near Time Extinctions

North American Near Time Extinctions

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North American Near Time Extinctions

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  1. North American Near Time Extinctions (Megafaunal Extinctions)

  2. North American Extinctions • American horses, (Equus, three to five species) (H) • Yukon wild ass (Equuslambei) (H) • California tapirs (Tapiruscalifornicus and Tapirusmerriami) (H) • Vero tapir (Tapirusveroensis) (H) • Western camel (Camelopshesternus) (H) • North American llamas (Hemiauchenia)(H) • Deer (Cervidae, two genera) (H)

  3. North American Extinctions • Pronghorn (Antilocapridae, two genera, one survived) (H) • Stag-moose (Cervalcesscotti) (H) • Shrub-ox and Harlan's muskox (the Arctic Muskox survived) (H) • Ancient Bison (Bison antiquus) (H) • Long-horned bison / Giant bison (Bison latifrons) (H) • Giant Beaver (Castoroides, two species) (H) • Saiga (Saigatatarica) (H) • Teratorns (C)

  4. North American Extinctions • Pinckney's Capybara (Neochoeruspinckneyi) (H) • Eremotherium and Nothrotheriops, megatheriid ground sloths (H) • Megalonyx, a megalonychid ground sloth (H) • Paramylodon, a mylodontid ground sloth (H) • Glyptodonts (H) • Pampatheres (H) • Short-faced Bear (Arctodussimus, larger than the present Grizzly Bear) (C) • Florida Cave Bear (Tremarctosfloridanus) (C) • Saber-toothed cat (Smilodonfatalis) (C) • Scimitar cat (Homotherium serum) (C)

  5. North American Extinctions • Giant polar bear (Ursusmaritimustyrannus, it is possible that this giant relative of the modern polar bear lived in North America) (C) • American lion (Pantheraleoatrox, larger than the current African Lion but probably a fairly recent immigrant through Beringia) (C) • American cheetah (Miracinonyx, not a true cheetah, possibly ancestral) (C) • Dire wolf (Canisdirus) (C) • Mammoth (Mammuthus), several species (H) • American mastodon (Mammutamericanum) (H) • Flat-headed (Platygonus) & Long-nosed (Mylohyus) peccaries (H)

  6. Surviving Megafauna • bison (H),  • moose (H) (a late Pleistocene immigrant through Beringia),  • elk(H),  • grey wolf (C),  • caribou (H),  • grizzly bear (C),  • American black bear • deer (H),  • pronghorn (H),  • muskox (H),  • bighorn sheep (H), • and mountain goat (H All surviving North American megafauna, except for the pronghorn, were immigrants from Eurasia. All of them except for the pronghorn evolved with human predators.