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Fossil specimen : BGS GSM266 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Asaphida

Fossil Name Homalopteon portlocki Salter
Type Status Lectotype
Name History

Homalopteon portlocki Salter

Barrandia portlocki Salter

Registration No. GSM266
Collector museum
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Country Ireland
Locality Newtown ,Waterford
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 ]


Owen, Tripp, & Morris 1986, Bull BM NH Geology, vol. 40 p.96

Salter 1866 Mon. Pal. Soc XIX, fig. 6

Salter, 1849,Mem. Geol. Surv. Dec. 2 7, fig 2

Available Images

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2354 KB

Steroscopic photographs


4138 KB

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3D Scans

1: bracket /BGS/GSM_266

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