Plant Stromatolite

Oldest fossil life

Stromatolites are among the oldest fossils found on earth today, and remain little changed. A stromatolite, meaning ‘layered rock’, is a solid structure created by shallow marine algae that secrete layers of calcium carbonate. You can see growth patterns in this specimen.

 

Common name

Plant Stromatolite

Scientific name

Stromatolite

Type

Wood & Plants


Strata

Purbeck Limestone Group

Time period

Lower Cretaceous

Age

140 million years

Where found

West side of the Isle of Portland. {module Portland Quarries safety warning}

Found by

Paul C Ensom

Museum

Dorset County Museum, Dorchester

Accession number

DCM.G.07757ii