GB3D Type Fossils

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Fossil specimen : SM A 15625 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Agnostida

Fossil Name Geragnostus hirundo (Hicks)
Type Status Holotype
Name History

Geragnostus hirundo (Hicks): Holotype

Agnostus hirundo Salter: Holotype

Agnostus hirundo Salter ms.

Registration No. A 15625
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
Comments Didymograptus hirundo zone (probably from)
Country Wales
Locality Whitesand Bay, St. David's, Pembrokeshire, Wales
Grid Reference Not available
Rock Unit Upper Arenig Rocks
Biozone Didymograptus hirundo
Geological Age

Arenig Series (Ordovician Period) (465.5 – 477.7 Ma B.P.)

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


Hicks 1875 b. Quarterly Journal of the Geological Society of London vol. xxxi (2): p.176 pl. x fig.10

Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (1): p.22

Whittard, W.F. 1955. The Ordovician trilobites of the Shelve Inlier, West Shropshire Palaeontographical Society Monographs (4): p.7 fig.4

Woods 1955. A catalogue of the type fossils in the Woodwardian Museum, Cambridge (error for Woods, H. (1891) ??) (3): p.138

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