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《科学》 第391卷 第6787期 · 2026年2月19日 · 中文解读

撒哈拉发现弯刀冠棘龙新种,揭示棘龙科分阶段辐射演化

Scimitar-crested Spinosaurus species from the Sahara caps stepwise spinosaurid radiation · P. C. Sereno et al.
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研究人员在撒哈拉中部发现了一种新的棘龙物种——奇异棘龙,其头骨上具有弯刀状的巨大骨冠,并基于此提出了棘龙科分三个阶段演化的模型。
原文开头
Paul C. Sereno et al. INTRODUCTION: The fossils of Spinosaurus aegyptiacus, a giant sail-backed, fish-eating theropod dinosaur from northern Africa, have inspired competing lifestyle interpretations, either as a semiaquatic ambush predator stalking shorelines and shallows or a fully aquatic predator in pursuit of prey underwater. Its bones and teeth have been found only in coastal deposits near marine margins, a locale potentially consistent with either lifestyle interpretation. Principal component analysis of body proportions places spinosaurids between semiaquatic waders (e.g., herons) and aquatic divers (e.g., darters) distant from all other predatory dinosaurs. …
摘自《科学》(Science)第391卷 第6787期 · 2026年2月19日,P. C. Sereno et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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