Baculites

Japanese: Baculites
Baculites

…Nipponites, found in Japan, is a well-known example of a heteromorph ammonite. The baculites of the Pacific and Indian Ocean regions show gradual changes in their characteristics over time, with particularly notable changes in the complexity of their sutures, and a similar evolutionary process is seen in the series from the inland regions of North America, which are different geographical regions. There are also various cases in which the relationship between the changes in various characteristics over time and changes in ontogeny is …

*Some of the terminology that mentions "Baculites" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…日本に産するニッポニテスは異常巻きアンモナイトの著名な例である。太平洋・インド洋地域のバキュリテス類Baculitesは時代順に形質が漸次変化し,とくに縫合線の複雑化が著しく,地理区の異なる北アメリカ内陸地域の系列でも同様の進化過程がみられる。また諸形質の時代的変化と個体発生上の変化との関係にはさまざまの場合がある。…

※「Baculites」について言及している用語解説の一部を掲載しています。

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

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