GB3D Type Fossils

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Fossil specimen : SM A 10558 – Undifferentiated Type

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Phacopida

Fossil Name Homalonotus (Brongniartella) tawneyi Reed nom. nud.
Type Status Undifferentiated Type
Name History

Homalonotus (Brongniartella) tawneyi Reed nom. nud.: Undifferentiated Type

Registration No. A 10558
Collector Name not available
Donor or Associated Person Name not available
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences, University of Cambridge
Country Wales
Locality Vyrnwy Dam, Rhayader (near), Bala, Gwynedd, Wales
Grid Reference Not available
Rock Unit Bala
Biozone Not available
Geological Age

Ashgill Series (Ordovician Period) – Caradoc Series (Ordovician Period) (443.8 – 458.4 Ma B.P.)

[Closest ICS interval: Late Ordovician Epoch ]


Reed, F.R.C. 1918. Geological Magazine n.s. dec. vi, vol v (2): pp.272,323

Available Images

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Steroscopic photographs


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