GB3D Type Fossils

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Fossil specimen : SM A 3106 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Asaphida

Fossil Name Ogygiocaris marginata (Crosfield & Skeat)
Type Status Lectotype
Name History

Ogygiocaris marginata (Crosfield & Skeat)

Ogygia marginata Crosfield & Skeat: Lectotype

Megalaspidella murchisoniae (Murchison)

Ogygiocaris marginata (Crosfield & Skeat)

Ogygia marginata Crosfield & Skeat: Syntype

Ogygia selwyni Salter

Registration No. A 3106
Collector Name not available
Donor or Associated Person Name not available
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences
Country Wales
Locality Nant Pwntan, Carmarthen, Carmarthenshire, Wales
Grid Reference Not available
Rock Unit Arenig
Biozone Not available
Geological Age

Arenig Series (Ordovician Period) (467 – 478.6 Ma B.P.)

[Closest ICS interval: Mid Ordovician Epoch – Early Ordovician Epoch ]


Crosfield & Skeat 1896. Quarterly Journal of the Geological Society of London vol. lii (2): p.538 pl. xxvi fig. 13

Whittard, W.F. 1964 for 1963. The Ordovician trilobites of the Shelve Inlier, West Shropshire Palaeontographical Society Monographs (5): p.237 pl. xxxvi fig. 8

Available Images

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Steroscopic photographs


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