A specimen ammonite, Dactylioceras tenuicostatum, collected from the Tenuicostatum Zone, Upper Lias, Whitby. North Yorkshire.
Dactylioceras tenuicostatum is very similar to the ammonite Dactylioceras commune. The main differences between the two are that, Dactylioceras tenuicostatum has more ridges, and they are closer together. Both of these ammonites are commonly found on the coast of North Yorkshire. Ammonites were eaten by larger sea-living reptiles, including the dolphin-like ichthyosaur, plesiosaurs and pliosaurs.
This specimen is from the Jurassic period (206 - 144 million years ago)
Period: Jurassic (Early), Lias (Upper),
Absoulute age: 178 - 183 my
Rock: Lias (Upper)
Zone: Tenuicostatum Zone
Size: 8 cm diameter
Please contact us for more details.
Your Email has been sent
Your E-mail has been sent. We will be in contact with you soon.
The security code you entered is incorrect. Please try again.
Your content caused an error and your email has not been sent.
Please remove any unusual characters and try again
A specimen ammonite, Dactylioceras tenuicostatum,
For more information please contact . Unique handmade Jet jewellery & Gifts