まとめ
アイオワ州で新しいデヴォン時代の種であるGluteus minimusの化石が発見されました.
科学分野:
- パレオントロジー・パレオントロジー
- デボニアン時代の化石
- 新しい種の発見 新しい種の発見
背景:
- アイオワ州東部のメープルミル・シェールには,数多くの謎の化石が含まれています.
- Gluteus minimusとして知られるこれらの化石は,濃縮された5センチメートルの間隔で発見されています.
研究 の 目的:
- 新しく発見された化石種を記述し,分類するために,Gluteus minimus.
- これらの化石の独特の形態学,組織学,および組成の特徴を調査する.
主な方法:
- メイプルミル・シェールからの化石標本のフィールドコレクション.
- 化石の形状と構造の形態学的分析.
- 化石組織の組織学的な検査.
- 化石のアパタイト組成の分析.
主要な成果:
- 何千ものGluteus minimusの化石が発見され,大体レンズ状と二葉状の形をした.
- 化石は直径11mm,厚さ8mmまでで,一貫して非対称性を示しています.
- 形質学,組織学,アパチティック組成のユニークな組み合わせは,既存の分類に挑戦しています.
結論:
- Gluteus minimusは,デボニアン時代の新しい属と種を表しています.
- Gluteus minimusの独特な特徴は,現在認められているどの高級分類体にも配置することを妨げています.
- この謎の化石の系統遺伝関係を決定するためにさらなる研究が必要である.
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