“xenacanthini”的音标：英式 /ˌzenəˈkænθɪni/；美式 /ˌzɛnəˈkænθɪni/
“xenacanthini”的用法和例句：
- Xenacanthini were a dominant group of freshwater cartilaginous fish during the Carboniferous Period.
- The distinctive comb-like dorsal spine of xenacanthini is a key diagnostic feature for identifying their fossils.
- Paleontologists have discovered well-preserved xenacanthini specimens in ancient lake deposits across Europe and North America.
- Xenacanthini are thought to have fed on small aquatic organisms, as evidenced by their needle-like teeth.
- Unlike most modern sharks, xenacanthini inhabited freshwater environments, making them unique among Paleozoic chondrichthyans.
- The decline of xenacanthini began at the end of the Permian Period, coinciding with the Permian-Triassic extinction event.
- Recent phylogenetic studies suggest xenacanthini may be closely related to the ancestors of modern ratfishes.
- Fossilized xenacanthini vertebrae have been found in coal measures, indicating their adaptation to swampy habitats.
以上参考资料是词义通为您整理的单词“xenacanthini”的解释和含义，如有错漏请向我们提供反馈意见。
来源：词义通 | 更新时间：2026-11-03 16:04:55 | 如有错漏欢迎反馈纠错
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