This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Mammut americanum | |
|---|---|
| Name | American mastodon |
| Fossil range | Pleistocene (Blancan to Wisconsinan) |
| Status | Extinct |
| Genus | Mammut |
| Species | americanum |
| Authority | (Kerr, 1792) |
Mammut americanum is an extinct proboscidean known from Pleistocene deposits across North America; it is commonly called the American mastodon and is recognized from abundant fossil remains recovered from glacial and interglacial contexts. Specimens have been central to debates in Quaternary paleontology, paleoclimatology, and archaeology, and have featured in museum exhibits at institutions such as the Smithsonian Institution, American Museum of Natural History, and the Natural History Museum, London.
Mammut americanum was described in the late 18th century and assigned to the genus Mammut, a name upheld in taxonomic treatments published in works by naturalists and organizations including the Linnean Society of London and the Royal Society. Early taxonomic history involved comparisons with taxa discussed by authors associated with the Royal Society of Edinburgh, the Philosophical Transactions of the Royal Society, and researchers linked to the British Museum (Natural History). Subsequent reviews by committees convened at conferences such as meetings of the Society of Vertebrate Paleontology and the International Union for Quaternary Research refined species-level diagnoses using specimens curated by the Field Museum of Natural History and the University of Michigan Museum of Paleontology.
Mammut americanum was a large, elephant-like mammal with a robust, heavily built skeleton described in monographs produced by curators at the American Museum of Natural History, Harvard University, and the University of California, Berkeley. Morphological descriptions emphasize distinctive molar cusp patterns compared in comparative studies involving specimens from the La Brea Tar Pits, the Gila River region, and the Yukon Territory. Reconstructions exhibited at venues such as the Royal Ontario Museum and the Natural History Museum of Los Angeles County illustrate a shaggy integument and long tusks; these reconstructions are informed by analyses published in journals affiliated with the National Academy of Sciences and the Geological Society of America.
Phylogenetic analyses situate Mammut within the proboscidean clade alongside taxa discussed in research associated with the American Museum of Natural History, Smithsonian Institution, and teams from the University of Chicago and the University of California, Berkeley. Molecular and morphological datasets have been compared in symposia sponsored by the Paleontological Society and the European Association of Vertebrate Palaeontologists, yielding hypotheses that contrast Mammut with lineages treated by authors linked to the Royal Society and the Natural History Museum, London. Fossil calibrations from sites investigated by the United States Geological Survey, the Canadian Museum of Nature, and the Florida Museum of Natural History have been incorporated into cladograms presented at meetings of the Society of Vertebrate Paleontology.
Studies of diet, seasonality, and habitat for Mammut americanum have been conducted by research teams affiliated with the Smithsonian Institution, the University of Arizona, and the University of Texas at Austin using faunal assemblages from the Alaska Range, the Great Lakes, and the Mississippi River drainage. Isotopic and dental microwear studies published by investigators connected to the Max Planck Institute for Evolutionary Anthropology, the University of Copenhagen, and the University of Oslo have informed interpretations of browsing behavior and ecological niches in landscapes influenced by events such as the Wisconsin glaciation and the Last Glacial Maximum. Paleoenvironmental reconstructions incorporating data from the National Oceanic and Atmospheric Administration and the Paleoecology Laboratory at the University of Minnesota place mastodons in forests and wetland mosaics alongside taxa reported from the Mammoth Steppe and sites studied by the Geological Survey of Canada.
Fossils of Mammut americanum are documented from localities across North America, including occurrences reported by the Florida Museum of Natural History, the Royal Tyrrell Museum, the University of Kansas Natural History Museum, and field projects supported by the National Science Foundation. Stratigraphic ranges span Blancan through late Wisconsinan deposits and are referenced in stratigraphic compilations by the United States Geological Survey and regional surveys by the Ontario Geological Survey and the Alaska Division of Geological & Geophysical Surveys. Notable sites yielding specimens include floodplain deposits along the Missouri River, peat deposits in Ohio, glacial outwash in Michigan, and Pleistocene lacustrine deposits in Alberta.
Extinction of Mammut americanum near the end of the Pleistocene has been debated in literature produced by scholars at the University of Arizona, the University of Florida, and the University of Calgary with hypotheses involving climate change concurrent with events like the Younger Dryas and human impacts associated with dispersals attributed to groups studied by archaeologists at the Smithsonian Institution and the Peabody Museum of Archaeology and Ethnology. Debates have been focal points at conferences held by the Quaternary Research Association and the Society for American Archaeology, where radiocarbon dates from collections curated by the British Museum (Natural History), the Field Museum, and the American Museum of Natural History are discussed.
Evidence for interactions between humans and Mammut americanum has been evaluated by teams from the Peabody Museum of Archaeology and Ethnology, the Smithsonian Institution, and the University of Wyoming through analyses of kill-site interpretations, tool associations, and butchery marks reported in reports published under the auspices of the Society for American Archaeology and presented at meetings of the American Anthropological Association. Sites cited in these discussions include stratified localities investigated by researchers affiliated with the University of Michigan, the University of California, Los Angeles, and the Royal Ontario Museum, where taphonomic analyses have explored connections between late Pleistocene human populations and mastodon populations.
Category:Proboscidea Category:Pleistocene mammals of North America