GB3D Type Fossils

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Fossil specimen : BGS Bj4749 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Bivalvia

      Order -

Fossil Name Semuridia quadrata Melville
Type Status Holotype
Name History

Semuridia quadrata Melville

Registration No. Bj4749
Collector British Geological Survey 1950
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Comments Lower Lias - turneri zone + birchi-turneri subzone. Depth 1598ft 2ins.
Country England
Locality Stowell Park Boring - Northleach - Glos.
Grid Reference Not available
Rock Unit Lias Group
Biozone Not available
Geological Age

Aalenian Age (Jurassic Period) – Rhaetian Age (Triassic Period) (171.6 – 203.6 Ma B.P.)


Available Images

High resolution photographs


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Steroscopic photographs


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