相关实验视频
Updated: Jul 12, 2026
08:02
Dissection and Flat-mounting of the Threespine Stickleback Branchial Skeleton
Published on: May 7, 2016
概括
大白 (Carcharodon carcharias) 长度的历史记录是夸张的. 重新检查表明,现代鱼和化石亲属的尺寸更小,估计下调.
科学领域:
- 古生物学的古生物学
- 海洋生物学 海洋生物学
- 鱼类学 鱼类学 鱼类学
背景情况:
- 历史记载和科学文献都将巨大的尺寸归因于大白 (Carcharodon carcharias).
- 之前的估计,例如Günther的36.5英尺 (11.1米) 的测量,已经被广泛引用.
- 现存和已灭绝的卡查罗登物种的潜在规模仍然是一个令人感兴趣的话题.
研究的目的:
- 重新评估大白 (Carcharodon carcharias) 的最大记录和估计长度.
- 为了纠正有关Carcharodon carcharias大小的历史不准确性.
- 为已灭绝的卡查罗登物种的大小提供更有科学依据的估计.
主要方法:
- 对化石和现代Carcharodon carcharias大标本和牙进行比较分析.
- 检查历史记录和鱼长度的科学归因.
- 对牙大小与身体长度的比率进行推断,以估计已灭绝的Carcharodon大小.
主要成果:
- 根特尔归因于Carcharodon carcharias的36.5英尺 (11.1米) 的长度被发现是高估的,所述的标本可能测量约17英尺 (5米).
- 最大的可靠测量的大白距离古巴21英尺 (6.4米).
- 鱼尸体咬伤的证据表明,目前的大白可能达到25-26英尺 (7.5-8米).
- 根据牙大小,已灭绝的Carcharodon物种估计已经达到大约43英尺 (13米).
结论:
- 大白 (Carcharodon carcharias) 的最大大小在历史上被高估了.
- 目前的证据表明,现存的大白的最大长度约为26英尺 (8米).
- 化石Carcharodon物种可能比现存物种更大,最大估计长度约为43英尺 (13米).
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