| 词条 | Palaeomastodon |
| 释义 |
| name = Palaeomastodon | fossil_range = {{Fossil range|Late Eocene|Early Oligocene}} | image = Palaeomastodon beadnelli.jpg | image_width = 250px | image_caption = P. beadnelli skull | regnum = Animalia | phylum = Chordata | classis = Mammalia | infraclassis = Eutheria | superordo = Afrotheria | ordo = Proboscidea | familia = †Palaeomastodontidae | genus = †Palaeomastodon | genus_authority = Andrews, 1901 | subdivision_ranks = Species | subdivision =
}}Palaeomastodon an extinct genus of Proboscidea. Palaeomastodon fossils have been found in Africa, lived some 36-35 million years ago. They are believed to be the ancestors of elephants or mastodons.[1] Palaeomastodon had tusks, both upper and lower, and it had a trunk. It was about {{convert|2.2|m|ftin}} tall at the shoulder and weighed about {{convert|2.5|t}}.[2] The lower tusks were flat rather than pointed cones, and were probably used to scoop plants from swampy water. Palaeomastodon was known to have their ears located towards the top of their heads, to make sure their sensory organs remained dry. In addition, their sharp tusks were used as a defense weapon.[3] References1. ^The genus Palaeomastodon {{webarchive|url=https://web.archive.org/web/20081017160948/http://www.elephant.se/palaeomastodon.php |date=2008-10-17 }} {{Proboscidea Genera}}{{Portal|Paleontology}}{{Taxonbar|from=Q132789}}{{paleo-mammal-stub}}2. ^{{Cite journal | last1 = Larramendi | first1 = A. | year = 2016 | title = Shoulder height, body mass and shape of proboscideans | journal = Acta Palaeontologica Polonica | volume = 61 | issue = | pages = | jstor = | doi = 10.4202/app.00136.2014 | url = https://www.app.pan.pl/archive/published/app61/app001362014.pdf | format = | accessdate = }} 3. ^{{cite journal|doi=10.1038/081139a0|title=The Feeding Habits of Mœritherium and Palæomastodon|journal=Nature|volume=81|issue=2074|pages=139–140|year=1909|last1=Osborn|first1=H. F.}} 7 : Oligocene proboscideans|Eocene proboscideans|Eocene mammals of Africa|Oligocene mammals of Africa|Transitional fossils|Prehistoric mammal genera|Fossil taxa described in 1811 |
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