Ammonite

An extinct group of marine invertebrate animals belonging to the cephalopod mollusc class, characterized by their tightly coiled, spiral shells. They thrived from the Devonian period to the Cretaceous period, ultimately becoming extinct at the end of the Mesozoic Era. These creatures, related to modern-day nautiluses and cuttlefish, are invaluable as index fossils due to their rapid evolution and widespread distribution, helping paleontologists date rock formations and understand past environments. The intricate patterns on their shells, along with their varying sizes, make them aesthetically appealing and popular with collectors.

Ammonite meaning with examples

• During a fossil excavation, Dr. Evans carefully unearthed a perfectly preserved Ammonite, revealing intricate sutures on its shell that provided clues to its classification. Its size and form hinted at the environment this Ammonite thrived in, with researchers able to determine its age. This find was instrumental in understanding the ecosystem of the region millions of years ago, adding vital knowledge to their research.
• The geological survey team discovered a layer of rock rich in Ammonite fossils, allowing them to accurately date the sedimentary layers and interpret the changes in sea levels over time. The presence of various Ammonite species helped the team understand the biodiversity of the ancient ocean. The team concluded that the ammonites were exposed at low tide. Analysis showed the ammonites were likely killed by volcanic activity.
• The museum's fossil display featured an impressive collection of ammonites, showcasing the diversity of their shell shapes and sizes from different geological periods. This enabled visitors to learn about the evolution of marine life and extinction events, and gave them insight into environmental changes. The ammonites presented a remarkable glimpse into the world of the Mesozoic era and offered a good visual understanding.
• Searching through the fossils, the young paleontologist held an Ammonite, admiring the elegant spiral design and feeling a connection to life from millions of years ago. The Ammonite served as a physical link between the present and the ancient past, sparking curiosity and igniting a passion. The spiraled Ammonite gave them hope that one day their dreams could be realized.