A finely polished Cardinia shell of a Jurassic period bivalve, the fine example of the 'best of British' fossils from this renowned location in Lincolnshire. Which has been closed for around twenty years while much of the quarry is now under water, so extinct! The frodingham ironstone has been mined since the Roman occupied British period, the fossil must have intrigued the ancient Romans as they do modern Britons today.
The excellent and highly polished shell of the bivalve from the Frodingham Ironstone displaying very good colours of creams and greens, these colour tones are a type of quartz mineralisation. The clam shell uniquely displays on the fossil bed matrix (as found) and this presents very well, along with the added bonus of having a partial ammonite and other extinct lifeforms encapsulated with this rock, alluding to a picture of the life in the Jurassic seas long ago.