Location Details

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Building Name or Address

Grosvenor House Ballroom

Location of Geological Feature

Steps. Sections through a large ammonite can be seen on the polished stones of the steps.

Description of geological feature

Portland Stone: Whitbed

Fossils

Titanites sp. ammonite

Rock Type

Oolitic Limestone

Geological Age

Jurassic

Quarry Location

Isle of Portland, Dorset, UK.

Category

Fossil

Nearest station

Hyde Park Corner

Address

86-90 Park Lane W1K 7TN

Building architect

Wimperis, Simpson & Guthrie and Edward Lutyens

Date of build

1929