- Home
- Rocks
- Type fossils
- Fossil Specimens
- Minerals
- Glossary
- Stratigraphic Chart
- Michel-Levy Chart
- Classification of igneous rocks
- University of Cambridge
- Department of Earth Sciences
- ESC Library
- Moodle
- Sedgwick Museum
- DoITPoMS
- Mindat.org
- Microfossils
- Bryozoans
- Webmineral
- Tree of Life
- CrystalMaker
- Virtual Microscope
TF0322 Ammonite
Title
TF0322
Ammonite
Description
Species
Hildoceras bifrons
Stratigraphic Range
Jurassic
Taxonomy
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Distinctive Features
Planispiral
Evolute
Ribs
Evolute
Ribs
Preservation
Mineral replacement of shell (aragonite to silica)
Citation
“TF0322
Ammonite,” 1A Collections, accessed April 9, 2024, https://wserv3.esc.cam.ac.uk/p1acollections/items/show/74.
Ammonite,” 1A Collections, accessed April 9, 2024, https://wserv3.esc.cam.ac.uk/p1acollections/items/show/74.