Promicroceras marstonensis – Jurassic – England

Promicroceras marstonensis

Jurassic

England

 

“Marston Magna Marble”

A very special fossil indeed, a genuine piece of Marston Ammonite marble. From the collection of J.W Kerkveld, sold off at auction some 4 years ago. I was lucky enough to be at that auction but as fate would have it, traffic was awful and I only got there in time to bid on the last fossil lot of the day. “1 box containing Ammonites” was the description. Unfortunately the entire collection had been split into over 40 separate groups of fossils but this was the only box containing Ammonites. The story of the Marston Magna marble is really something of a legend amongst fossil collectors world wide, mainly due to the fact that the exact location of the find has been lost to history… Legend has it that a large slab of this charcoal grey stone was found within the confines of the church graveyard when they were digging a well and that it was found at 74ft depth making it hard to find. Although not actually looking for stone (they were after the water) they soon found a use for it making decorative headstones for the graveyard and a few table tops. None of the pieces were very large though and if you take a look around the British Museum of Natural History, you will see they have only one marker stone left. All the other headstones have been removed from the churchyard over the years by thieves, and as I have already said its down so deep anyhow that collecting is impossible so replacement of the stone is out of the question. We have tried to find out more about the man in question but have come up blank on that one. However, it was assumed by the auctioneers that this piece we are selling is actually part of a lager polished slab (probably being made as a table top) and this is an offcut from that process.

 

Specimen 01

MARSTON MAGNA MARBLE AMMONITE FOSSIL Ammonites Fossils

Item number: 290278327896

Winning bid: US $174.93 

Ended: Dec-06-08 19:30:00 PST

Winning bidder: User ID kept private

Seller: fossilfarm-uk

 

This piece measures 4″ x 2.9″ x 1.3″. It exhibits stunning detailing of several Promicroceras marstonensis Ammonites positives and negatives. Polished on one side to show the intricate brown and golden Calcite replacement of the Ammonite chambers, and 3D prepared on the other side to show the original brilliant white shells. The range of small Ammonites in such abundance supports the view that this fossil is a result of a mass mortality due to an Algal bloom in a breeding ground. A wonderfully tactile, stable and attractive display piece, and truly worthy of the worlds finest collections.

 

Specimen 02

MARSTON MAGNA MARBLE AMMONITE FOSSIL Ammonites Fossils

Item number: 350114486133

Winning bid: US $306.33 

Ended: Nov-02-08 18:29:00 PST

Winning bidder: User ID kept private

 

Marston Magna Ammonite Marble

Exceptionally rare multi Ammonite fossil from Somerset, England

This piece measures 6″ x 4.6″ x 1.3″. It exhibits stunning detailing of dozens of Promicroceras marstonensis Ammonites positives and negatives. Meticulously prepared to show the beautifully intricate brown and golden Calcite replacement of the Ammonite chambers, with original brilliant white shells still visible and iridescent colouring. The range of small Ammonites in such abundance supports the view that this fossil is a result of a mass mortality due to an Algal bloom in a breeding ground. A wonderfully tactile, stable and attractive display piece, and truly worthy of the worlds finest collections.

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