|
Date: |
|
Description: | Specimen of a fossil ammonite, Macrocephalites macrocephalus, collected from the Kelloways Rock of Middle Jurassic, Callovian age from Yorkshire (NE England).
Macrocephalites macrocephalus was an ammonite that lived approximately 160 million years ago. Ammonites lived in the sea, and were probably eaten by the larger animals that lived there, for example, ichthyosaurs, large marine reptiles that looked a bit like dolphins. Ammonites and ichthyosaurs both died out at the same time as the dinosaurs, 65 million years ago. This ammonite has a brassy colour, because its shell has been replaced by the mineral iron pyrite (fool's gold).
The specimen was found in Yorkshire.
It is from the Jurassic period (206 - 144 million years ago) | Publisher: | Tyne & Wear Archives & Museums | Subjects: | Cephalopoda Classification: Animalia Invertebrata Ammonoidea Mollusca | Temporal: | Jurassic period (206 - 144 million years ago) | Source: | Tyne & Wear Archives & Museums | Identifier: | http://www.twmuseums.org.uk/geofinder/se... | Go to resource |
|
More Like this...
-
-
-
-
Ammonite
Macrocephalites macrocephalus was an ammonite…
-
-
-
-
-
-
|