ammonite

Ammonite

词性与含义

• Ammonite is primarily used as a noun, referring to an extinct group of marine mollusks that are characterized by their spiral shells.

  阿莫尼特 主要用作名词，指的是一种已灭绝的海洋软体动物，以其螺旋形的外壳为特征。

词语辨析

• “Ammonite” vs “Nautilus”: Both are cephalopods, but ammonites are extinct and have more complex shell structures, while nautiluses are still alive today.

  “阿莫尼特”与“鹦鹉螺”：两者都是头足类动物，但阿莫尼特已灭绝，且有更复杂的壳结构，而鹦鹉螺至今仍然存在。

词汇扩充

• Ammonoid: A subclass of cephalopods that includes ammonites and related forms.

  阿莫诺伊德: 一个包含阿莫尼特及相关形式的头足类动物亚类。

近义词

• Cephalopod: A class of mollusks that includes squids, octopuses, and ammonites.

  头足类动物: 一个包含鱿鱼、章鱼和阿莫尼特的软体动物类。

反义词

• There are no direct antonyms for ammonite, as it refers to a specific extinct group.

  没有直接的阿莫尼特反义词，因为它指的是一个特定的已灭绝群体。

使用

• The fossilized ammonite was discovered during the excavation.

  在挖掘过程中发现了化石化的阿莫尼特。

• Many ammonites lived in the oceans millions of years ago.

  许多阿莫尼特在数百万年前生活在海洋中。

• The spiral shape of the ammonite shell is fascinating to paleontologists.

  阿莫尼特外壳的螺旋形状对古生物学家来说非常吸引人。

• Some ammonite species had shells that could reach over a meter in diameter.

  一些阿莫尼特物种的外壳直径可超过一米。

• In museums, you can find impressive displays of ammonite fossils.

  在博物馆里，你可以看到令人印象深刻的阿莫尼特化石展览。

• The study of ammonites helps scientists understand ancient marine ecosystems.

  研究阿莫尼特帮助科学家理解古代海洋生态系统。

• Some cultures have used ammonite as a symbol of good luck.

  一些文化将阿莫尼特作为好运的象征。

• The intricate patterns on the ammonite shell are beautiful.

  阿莫尼特外壳上的复杂图案非常美丽。

• Geologists often find ammonite fossils in sedimentary rock layers.

  地质学家常在沉积岩层中发现阿莫尼特化石。

• Ammonites are often used as index fossils in biostratigraphy.

  阿莫尼特常被用作生物层序地层学中的指标化石。

• The extinction of ammonites is still a subject of research.

  阿莫尼特的灭绝仍然是研究的课题。

• Ammonite shells are sometimes used in jewelry and decorative items.

  阿莫尼特外壳有时被用作珠宝和装饰品。

• The size of an ammonite can indicate the environmental conditions it lived in.

  阿莫尼特的大小可以指示其生活的环境条件。

• Some ammonite fossils show signs of predation.

  一些阿莫尼特化石显示出捕食的迹象。

• Ammonite fossils can be found on every continent.

  阿莫尼特化石可以在每个大洲找到。

• Collecting ammonite fossils is a popular hobby among enthusiasts.

  收集阿莫尼特化石是爱好者们的一项热门活动。

• The ammonite is often depicted in art due to its unique shape.

  由于其独特的形状，阿莫尼特常在艺术作品中被描绘。

• Understanding ammonite evolution provides insights into the history of life on Earth.

  理解阿莫尼特的演化为我们提供了地球生命历史的见解。

参考词典

• Collins Dictionary: Ammonite - a fossil of an extinct marine mollusk.

  柯林斯词典: 阿莫尼特 - 一种已灭绝的海洋软体动物的化石。

• Oxford Dictionary: Ammonite - a member of a group of extinct marine mollusks characterized by their coiled and chambered shells.

  牛津词典: 阿莫尼特 - 一类以其卷曲和有隔室的外壳为特征的已灭绝海洋软体动物。