Ceratite (English spelling)

Japanese: セラタイト(英語表記)ceratite
Ceratite (English spelling)
Also called antheroids. A group of ammonites in the order Ceratitida that showed remarkable adaptive radiation during the Triassic Period and developed into a wide variety of species. The representative genus is Ceratites , and it is important as an index fossil. The sutures are unique, with a mountain in the center of the valley on the ventral side, and the valley on the dorsal side is usually spatula-shaped with two branches at the tip. Some have almost no small indentations, some only have them at the valley bottom, some have mountains, and some are complex and multi-branched. They are found in various parts of the Indian and Pacific regions, and in Japan in Miyagi Prefecture, Tokushima Prefecture, Kumamoto Prefecture, Okinawa Prefecture, and other places.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
菊面石類ともよばれる。アンモナイト類の中で三畳紀に著しい適応放散を示し,多種多様の分化発達をなしたセラタイト目Ceratitidaのこと。代表属はセラティテスCeratitesで,示準化石として重要である。縫合線に独特の特徴が見られ,腹面の谷の中央に山があり,背面の谷は通例へら状で先端が二分している。小刻みがほとんどないものから,谷底だけにあるもの,山にも及ぶもの,複雑化し多分岐したものがある。インド,太平洋地域の各地で産出するが,日本でも宮城県,徳島県,熊本県,沖縄県などから産出する。

出典 株式会社平凡社世界大百科事典 第2版について 情報

<<:  Gelatin - gelatin

>>:  Serada

Recommend

Sintra (English spelling)

A town in the Lisbon district in the mid-west of P...

Anaspida - Anaspida

...The telson and the tail limbs form a tail fan,...

Truffle - toryufu (English spelling) truffe French

A general term for truffles in cooking. They are ...

Narcissus triandrus (English spelling)

…[Hiroshi Aramata]. … *Some of the terminology th...

Koshinohara ruins - Koshinohara ruins

Located in Koshinohara, Yasu-cho, Yasu-gun, Shiga ...

Children's Events - Children's Events

...However, after that, especially with the chang...

Goldstein, Kurt

Born: November 6, 1878 in Katowice, Silesia [Died]...

Cahiers du Cinema

…Although he was born in Paris and was French, he...

Outer moon - Gaieisei

… [The Moon as a satellite] The Moon is the only ...

social exchange

...The idea of ​​"reward" and "fav...

Tokai [village] - Tokai

A village in Naka district, eastern Ibaraki prefec...

Kambara pyroclastic flow

...The last major eruption occurred in 1783 (Tenm...

Rotating bending fatigue testing machine

…Typical fatigue testing machines include tension...

Mantaro Kido

Born: July 1, 1893 in Matsuyama [Died] November 18...

cold weather concreting

...There are various types of curing methods, suc...