编号 96095478

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Brittle Star - 矩阵化石 - Asteriacites lumbricalis
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4周前

Brittle Star - 矩阵化石 - Asteriacites lumbricalis

Manuel Quiring

估价 € 170 - € 200

由Manuel Quiring精选
* Name: Asteriacites lumbricalis * Trace Maker: Brittle star (Class Ophiuroidea) * Geological Age: Rhaetian Stage, Late Triassic * Timeframe: Approximately 208.5 to 201.3 million years ago * Findspot: La Voulte-sur-Rhône, Ardèche, France * Formation/Depositional Environment: Shallow marine sandstone; low-energy, well-oxygenated seabed * Morphology: Star-shaped imprint with five radiating, sinuous arms—resting trace of a brittle star * Paleoenvironmental Significance: Indicates calm, shallow marine conditions just before the Triassic–Jurassic extinction event This Asteriacites lumbricalis is an exceptional ichnofossil—an ancient resting trace left by a brittle star on a soft seabed over 200 million years ago, during the Rhaetian Stage of the Late Triassic. Discovered in the marine sandstones of La Voulte-sur-Rhône, France, it captures the elegant, star-like imprint of a prehistoric echinoderm just before the dawn of the Jurassic. Its five sinuous arms and finely preserved symmetry offer not only scientific insight but also natural aesthetic beauty. A rare and authentic piece of Earth's deep marine history—perfect for collectors seeking both scientific value and visual appeal. Matrix is 12 x 4,5 cm.

编号 96095478

已不存在
Brittle Star - 矩阵化石 - Asteriacites lumbricalis

Brittle Star - 矩阵化石 - Asteriacites lumbricalis

星形足迹属(Asteriacites lumbricalis)
迹 maker:碎星(鱼籽纲)
地质时代:瑞泰期,晚三叠世
大约在2亿8500万年至2亿1300万年前
出土地点:法国阿尔代什省拉沃尔特苏尔罗纳
成因/沉积环境:浅海砂岩;低能量、良好氧合的海底
形态学:星形印迹,具有五个辐射的弯曲臂——脆星的残留痕迹
古环境意义:表明三叠纪-侏罗纪灭绝事件之前的平静、浅海条件

这块Asteriacites lumbricalis是一个非凡的古生物足迹化石——在距今超过2亿年的晚三叠世雷蒂安期,古老的海底遗迹由一只海星在软海床上留下。在法国La Voulte-sur-Rhône的海洋砂岩中被发现,它捕捉了一个史前棘皮动物在侏罗纪曙光到来之前的优雅星形印记。它那五条蜿蜒的臂和精美保存的对称结构不仅提供了科学的洞察,还展现了自然的美学魅力。这是地球深海历史中的稀有且真实的遗迹——非常适合那些既追求科学价值又欣赏视觉美感的收藏者。

矩阵尺寸为12 x 4.5厘米。

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