GB3D Type Fossils

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Fossil specimen : BGS GSM91587 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Bivalvia

      Order -

Fossil Name Nuculana (Ryderia) graphica (Tate)
Type Status Holotype
Name History

Nuculana (Ryderia) graphica (Tate)

Registration No. GSM91587
Collector Name not available
Donor or Associated Person Gavey, G. E. Esq. 1850 – 1870
Held By British Geological Survey Logo British Geological Survey
Comments No Roman numerals on old sample ID.
Country England
Locality Mickleton Tunnel - Glos.
Grid Reference Not available
Rock Unit Lower Lias (Undifferentiated)
Biozone davoei
Geological Age

Pliensbachian Age (Jurassic Period) – Hettangian Age (Jurassic Period) (182.7 – 201.3 Ma B.P.)


Allan 1905 Mem Geol Surv Sum of Progress p.174

Tate 1870 Quart Journ Geol Soc Vol 26 Pl.26, fig.12

Available Images

High resolution photographs


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Steroscopic photographs


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