They weren't part of the perissodactyl group itself; they're what's called a sister group.
它们本身不属于奇蹄类。他们就是所谓的姐妹团。
perissodactyl
/pəˌrisəuˈdæktil/ /pəˌrɪsoˈdæktəl/
英汉-汉英词典
n. 奇蹄动物
词组 | 习惯用语
您要查找的是不是：
- pterodactyl n. 翼龙
- peristyle n. 列柱廊
- peristalsis n. 蠕动
- periodicity n. 定期;周期性 周律
网络短语:
perissodactyl 奇蹄动物; 奇蹄类;
原声例句
PBS地球-动物趣闻
PBS地球-动物趣闻
This was the environment that gave rise to the very first perissodactyls, hoofed mammals with an odd number of toes.
这是产生第一批奇蹄类动物的环境，奇蹄类动物是有奇数个脚趾的有蹄类哺乳动物。
PBS地球-动物趣闻
From the anatomy of its feet, they could tell that it was a perissodactyl, or an " odd-toed ungulate, " that stood on three toes.
从它的脚的解剖结构来看，他们可以看出它是用三个脚趾站立的奇蹄类动物，或“奇蹄类动物”。
PBS地球-动物趣闻
They were also most closely related to a group called perissodactyls or odd-toed ungulates - like horses and rhinos - and not the group that includes elephants and manatees.
它们也与称为奇蹄类或奇趾有蹄类动物（如马和犀牛）关系最密切，而不是包括大象和海牛在内的群体。
PBS地球-动物趣闻
One of the first perissodactyls we know of was Hyracotherium, a small ungulate whose fossils were first discovered in England and named, for some reason, for its supposed resemblance to the rock hyrax.
我们所知道的最早的奇蹄类动物之一是始祖马，这是一种小型有蹄类动物， 其化石最早是在英格兰发现的，并出于某种原因因其与岩蹄兔的相似性而得名。
中文百科
奇蹄目 Odd-toed ungulate
（重定向自Perissodactyl）
奇蹄目（学名：Perissodactyla）是哺乳动物中的一个目，包括有奇数脚趾的动物。原始奇蹄动物的脚趾是前三后四，现生的奇蹄动物貘就是这样的脚趾结构(马来貘脚趾是前四趾后三趾)。草食，胃的构造和偶蹄目部分成员多的胃室相较简单，但盲肠大而呈囊状可协助消化植物纤维。奇蹄目有三个亚目，分别是马型亚目(Hippomorpha)（包括马科和已经灭绝的雷兽科），爪兽亚目(Ancylopoda)（已经灭绝）和角型亚目(Ceratomorpha)（包括貘科和犀科）。奇蹄目的化石非常丰富，史前曾是十分繁盛的种群，分化出形态各异的种类。史前的奇蹄动物包括爪兽(Chalecothere)、巨犀(Indricothere)等。现代的奇蹄目整体呈衰落状态。由于偶蹄目更能适合消化植物纤维，所以奇蹄目的生态位被后起的偶蹄目(Artiodactyla)逐渐取代，现在仅存16个野生物种（包括犀科5种、貘科4种、马科7种），且多数处于濒危状态。
英语百科
Odd-toed ungulate 奇蹄目
（重定向自Perissodactyl）
Perissodactyls, otherwise known as odd-toed ungulates, compose an order of mammals characterized by an odd number of toes and by hindgut fermentation with somewhat simple stomachs. As large grazers they digest plant cellulose in their intestines rather than in one or more stomach chambers, unlike the even-toed ungulates. The order includes three extant families: Equidae, including horses, donkeys, and zebras, Rhinocerotidae, rhinos and Tapiridae, tapirs, with a total of about 17 species. In spite of their very different appearance they were recognized as related families in the 19th century by the zoologist Richard Owen, who also coined the term.
近义、反义、联想词
近义词
n.ungulate, hoofed mammal
联想词
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