GB3D Type Fossils

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Fossil specimen : BGS Geol.Soc.Coll.6836a – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Asaphida

Fossil Name Trinucleus fimbriatus Murchison
Type Status Lectotype
Name History

Trinucleus fimbriatus Murchison

Registration No. Geol.Soc.Coll.6836a
Collector RI Murchison 1911
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Country Wales
Locality Gwern-y-fach Builth Radnorshire
Grid Reference Not available
Rock Unit Llandeilo Flags Formation
Biozone Not available
Geological Age

Caradoc Series (Ordovician Period) – Abereiddian Stage (Ordovician Period) (449 – 465.5 Ma B.P.)

[Closest ICS interval: Late Ordovician Epoch – Darriwilian Age ]


Cave, 1957, Geol. Mag. vol 94 p.283

Hughes 1971 Bull. BM. NH vol. 20 no. 4 p.178

Selected Stubblefield & Whittington Int Comm Zool Nom Opinion 505 Vol 18 Part 8 Page 164 p.164

Whittard, WF, 1956, Pal. Soc. Mon. "Ordovician Trilobites of the Shelve Inlier W Shropshire" p.45-46 pl. 6 fig 4

Available Images

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1: bracket /BGS/Geol_Soc_Coll_6836

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