Ammonite – Loudun, Poitou, France
Locality: Loudun, Poitou, France
Alt: approximately 166.1 to 163.5 million years
Weight: 159g
Dimensions: 7,4 x 6,5 x 3 cm
| Category: | Fossil |
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Explanation:
- Dogger - The middle part of the Jurassic, which lasted approximately 174 to 163 million years. The Jurassic is divided into three parts:
- Lias (lower Jurassic)
- The Dogger (Middle Jurassic)
- Malm (Upper Jurassic)
The Dogger is often associated with sediments of marine origin, rich in fossils, including ammonites.
- Callovien - The highest stratigraphic stage of the Middle Jurassic (Dogger), which lasted approximately 166.1-163.5 million years. It is known for its abundant marine fossils, especially ammonites, belemnites, and various species of marine reptiles.
Thus, ammonite, Dogger, Callovien means that it is a layer of sedimentary rocks containing ammonite fossils that formed during the Callovien period, which is the youngest stage of the Middle Jurassic (Dogger). These sediments were typically deposited in shallow seas where ammonites were abundant.