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Updated: Jul 9, 2026

15:31
Tissue Collection of Bats for -Omics Analyses and Primary Cell Culture
Published on: October 23, 2019
ティラノサウルス・レックス (Tyrannosaurus rex) の軟組織血管と細胞保存
Mary H Schweitzer1, Jennifer L Wittmeyer, John R Horner
1Department of Marine, Earth, Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, USA. schweitzer@ncsu.edu
まとめ
ティラノサウルスの後肢から化石化した軟組織は,保存された血管と細胞のような構造を示しています. これらの恐竜の柔らかい組織は,元の柔軟性と回復力を保持しています.
科学分野:
- パレオントロジー・パレオントロジー
- バイオケミストリー バイオケミストリー
- 地質学 地質学 地質学
背景:
- 非鳥類の恐竜の軟組織の保存は希少であり,議論されている.
- 古代生物材料の分子と構造の整合性を理解することは,古生物学にとって極めて重要です.
研究 の 目的:
- ティラノサウルス・レックス (Tyrannosaurus rex) の後肢の標本における軟組織の保存状態を調査するために.
- 古代の柔らかい組織が,柔軟性や弾性などの元の物理的性質を保持しているかどうかを判断する.
主な方法:
- ティラノサウルス・レックス (MOR 1125) の後肢骨要素の脱鉱化.
- 血管や微細構造を含む保存された軟組織の顕微鏡分析.
- 脱鉱骨マトリックスによる化学的および物理的特性評価.
主要な成果:
- 透明で柔軟で空洞な血管は,脱鉱化後に明らかにされました.
- 血管内には細胞のような形態を持つ小さな丸い微細構造が観察されました.
- 脱ミネラル化した骨マトリックスには,弾性と回復力を持つ繊維状の領域が示されました.
結論:
- ティラノサウルスの柔らかい組織は,元の柔軟性,弾力性,回復力を保持できます.
- この発見は,恐竜の軟組織の完全な劣化に関する以前の仮定に異議を唱える.
- 恐竜の軟組織保存に関するさらなる研究は,古代生物学に関する新しい洞察を提供することができます.
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