Mesonyx ("middle claw") is a genus of extinct mesonychid mesonychian mammal. Fossils of the various species are found in Early to Late Eocene-age strata in the United States and Early Eocene-aged strata in China, 51.8—51.7 Ma (AEO). [1] Mesonyx species have been estimated as 1.25-1.5m (4.5–5 ft.) long in life, not including the tail.

中爪兽（Mesonyx），又名中兽或钝肉齿兽，是中爪兽科下的一类。它们外表像狼及大小如狗，是始新世中期（约4500万年前）美国怀俄明州及东亚的掠食者。它的四肢灵活，相信是奔跑的能手，可能捕食草食性的有蹄类。不过中爪兽并没有爪，趾上有细小的蹄。

中爪獸（Mesonyx），又名中獸或鈍肉齒獸，是中爪獸科下的一類。牠們外表像狼及大小如狗，是始新世中期（約4500萬年前）美國 懷俄明州及東亞的掠食者。牠的四肢靈活，相信是奔跑的能手，可能捕食草食性的有蹄類。不過中爪獸並沒有爪，趾上有細小的蹄。

Mesonychidae (meaning "middle claws ") is an extinct family of small to large-sized omnivorous - carnivorous mammals. They were endemic to North America and Eurasia during the Early Paleocene to the Early Oligocene, and were the earliest group …

Mesonychians are an extinct group of primitive hoofed mammals. They are recorded on the entirety of Laurasia (Asia, Europe, North America), from the early Paleocene to early Oligocene. They were well diversified: more than 20 genera are …

中爪獸科 （Mesonychidae）是已 滅絕 的中等至大型的 肉食性 哺乳動物，是 偶蹄目 的近親。 牠們首先出現於早 古新世，於 始新世 開始衰落，並於早 漸新世 滅絕，最後的成員 蒙古中獸屬。 [1] 中爪獸科可能源於 亞洲，當中最原始的 Yangtanglestes 是出現於早古新世。 牠們在亞洲是非常的多樣化。 由於其他食肉動物如 肉齒目 及 踝節目 較為稀少或已經消失，中爪獸科很有可能稱霸古新世亞洲的大型 掠食者 生態位。 由古新世至始新世，有幾類如 雙尖中獸 、 厚中獸 及 中爪獸 …

2015年4月24日 · Mesonyx has been repeatedly identified as a wolf-like predator due to its‭ ‬similar size and overall appearance to modern wolves‭; ‬although it’s important to mention that it was not directly related to modern wolves as Mesonyx appeared‭ (‬and disappeared‭) ‬long before the direct ancestors of them.‭ ‬Still,‭ ‬Mesonyx ...

2023年4月18日 · Mesonychians are hoofed carnivorous mammals that occurred from the early Paleocene to the early Oligocene on the entirety of Laurasia (Asia, Europe, and North America) (Rose 2006). This mammalian clade exhibited a high taxonomic diversity, with more than 20 genera currently known (Szalay and Gould 1966; Rose 2006).

2009年8月15日 · Mesonychids are a mostly Eocene group that originated in the Paleocene; Mesonyx, from the Middle Eocene of North America, was the first member of the group to be named (Cope published the name in...

2012年8月3日 · 摘要：描述了近年来发现于内蒙古二连盆地东部呼和勃尔和地区以及巴彦乌兰早古近纪地层中的中兽科化石材料，共计4属6种，包括一个未定种和发现于阿山头组底部的努和廷中兽新种(Mesonyx nuhetingensis sp. nov.)。新种区别于该属其他种的特点是：p4为最长下颊齿 ...