As you wander around London, you’ll notice that a white coloured stone is prevalent. It’s called Portland Stone. After the Great Fire of 1666, and realising that building things out of wood wasn’t such a hot idea (pun intended), Christopher Wren used 6 million tonnes of the stuff whilst rebuilding the City. He rebuilt 51 of the 87 churches that burned, with the mighty St Paul’s cathedral being the most famous; a good example of Wren’s use of Portland Stone, which is a particular favourite amongst architects apparently due to its versatility. More recent examples include BBC Broadcasting House, Green Park Underground station, the CitizenM Hotel and the British Museum.
Portland Stone comes, not surprisingly from Portland on the south coast of England, in Dorset, known as the Jurassic Coast due to the amount of fossils found there from the ‘Jurassic Age’ which occurred 199.6million – 145.5 million years ago. A unique feature therefore of Portland Stone is the sheer number of fossils found within it. I’ve heard it said that occasionally as the buildings weather, fossils appear. Whether this is true or not I have no idea. What is certain though, is that I’ve noticed in recent years that a particular type of Portland limestone called ‘Bowers Roach’ is being used on facades and cladding, with the very visible fossils utilised as a decorative feature; a very effective one at that. I love that fact that people walk around London every day passing 150 million year-old fossils, and they have no idea.
As an example, the below photo is of a bench I often sit on to have my lunch on Saturdays. As you can see, it’s positively festooned with fossils.
The photo at the top shows fossils on the New London Stock Exchange building, Paternoster Square. I’m not an aficionado on fossils (as with anything), but the very prominent cone shaped fossils, known as the ‘Portland Screw’ are officially Gastropods ( Aptyxiella Portlandila). Looks like it might have numerous Bivalves (Liostrea Expansa) too, otherwise known as Oysters.
If you fancy yourself as an urban geologist, whilst you’re out and about fossil hunting in London, keep your eyes open for Pecten (Camptonectes Lamellosus) or Scallop Shells, Mussels (Mytilus Suprajurensis) or Ammonites (Titanites Anguiformes) to name but a few. If you happen to be passing through Euston Station, check out their funky benches, which as the Londonist pointed out, must surely be the oldest benches in London.
If you’d like to find out a bit more about Portland Stone, then have a look at Albion Stone’s website, one of the main providers of Portland Stone, including the examples given above.
Bowl Of Chalk
Bowl Of Chalk based shenanigans.