A common name for hoofed mammals, including odd-toed and even-toed ungulates. A large herbivore adapted to running on the ground, with long metacarpals and metatarsals, missing the first toe, and a long row of molars. In the past, in addition to odd-toed and even-toed ungulates, proboscideans, hyraxes, extinct condylars, and anunculidae, all belonging to the proboscidea, were also included in the ungulate order, but this classification is no longer used today, as it would be necessary to include tubulodonts, sirenians, extinct fascicularis, holodonta, and kumai. [Yoshinori Imaizumi] [Reference item] | |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
ひづめをもった哺乳(ほにゅう)類の俗称で、奇蹄類と偶蹄類を含む。地上を走るのに適応した大形草食獣で、中手・中足骨が長く、第1指を欠き、臼歯(きゅうし)列が長い。古くは奇蹄類、偶蹄類のほか、原蹄上目に属する長鼻類、ハイラックス類、絶滅した顆節(かせつ)類、南蹄類などをも含めて有蹄目としたが、系統的には管歯類、海牛類、絶滅した束歯類、全歯類、クマイヌ類などをもこれに含める必要があるため、この分類は現在では用いられていない。 [今泉吉典] [参照項目] | |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
<<: Dielectric heating - Yudenkanetu
A calligrapher of the Meiji and Taisho periods. H...
Manga artist. Born in Saga Prefecture. Losing her...
One of the endocrine organs that is extremely imp...
...All three species are seen passing through the...
…A thin tube inserted into the stomach through th...
…The Romantics who followed him include, for exam...
The name of a mountainous region along the Arabian...
…Originally it means a small boat. However, it is...
〘Noun〙① Sea and mountain. Sea and mountain. ※Man...
…It resembles the Japanese catfish, but can be di...
...Around the 8th and 7th centuries BC, the Scyth...
... When the Japanese laurel was first introduced...
A facility that breeds various aquatic creatures ...
1909‐2002 A French scholar of comparative literatu...
An academic field that integrates science and tech...