GB3D Type Fossils

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Fossil specimen : NMW 72.6G.4 – Paratype

Taxonomic Group

Kingdom Animalia

  Phylum Brachiopoda

    Class Rhynchonellata

      Order Orthida

Fossil Name Visbyella trewerna Bassett, 1972
Type Status Paratype
Name History

Visbyella trewerna Bassett, 1972 – See Bassett (1972): Paratype

Registration No. 72.6G.4
Collector Name not available
Donor or Associated Person Palmer, D.
Held By Amgueddfa Cymru - National Museum Wales Logo Amgueddfa Cymru - National Museum of Wales
Country Wales
Locality Cwm-y-sul, Welshpool, Powys
Grid Reference Available from host institution
Rock Unit Glyn Member, Trewern Brook Mudstone Formation
Biozone nassa
Geological Age

Homerian Age (Silurian Period) (427.4 – 430.5 Ma B.P.)


Bassett, M.G. 1972. The articulate brachiopods from the Wenlock Series of the Welsh Borderland and South Wales. Part 2. Monograph of the Palaeontographical Society, London, 27-78. p.55, pl.11, fig.18

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