GB3D Type Fossils

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Fossil specimen : SM A 31915 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Brachiopoda

    Class -

      Order -

Fossil Name Dalmanella biconvexa Williams
Type Status Holotype
Name History

Dalmanella biconvexa Williams: Holotype


Registration No. A 31915
Collector Name not available
Donor or Associated Person Turnbull, V.M.
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences
Comments part and counterpart : (parts a-c)
Country Wales
Locality St. Martin's Cemetery, Haverfordwest, Pembrokeshire, Wales
Grid Reference Not available
Rock Unit Haverford Bed
Biozone Not available
Geological Age

Hirnantian Age (Ordovician Period) (443.7 – 445.6 Ma B.P.)


Williams, Alwyn 1951. Quarterly Journal of the Geological Society of London vol. cvii (2): p.95 text-fig.4 a, pl. iv figs.3-4 (a.31, 915c)

Available Images

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