Dactylioceras
Fossil
Also called Snakestone and Dactylioceras commune
About it
Early Jurassic ammonite with dense, straight ribs and loose coiling that leaves every whorl in view. The classic ammonite of Whitby, Yorkshire, once given carved snake heads and sold as snakestones; also common in Germany.
- Type
- Fossil (mollusc)
- Group
- Cephalopod (mollusc)
- Colours
- grey, brown, cream, black
- Transparency
- opaque
- Periods
- Jurassic
Typical values: real specimens vary. For more, see mindat.org.