Here is a rarely nice Ichthyosaur vertebra that has been prepared out of a limestone concretion. The circular concretion has a diameter of about 86 mm. | |||
Location: | Kettleness, Yorkshire, UK | ||
Size Fossil: | about 55 mm diametner | ||
Age: | Jurassic, lower Lias, Semicostatum Zone (About 190 Ma) |