GB3D Type Fossils

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Fossil specimen : BGS GSM10206a – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Asaphida

Fossil Name Cermatops discoidalis (Salter)
Type Status Lectotype
Name History

Cermatops discoidalis (Salter)

Dikelocephalus? celticus

Registration No. GSM10206a
Collector Survey 1853
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Country Wales
Locality Ogof-Ddu
Grid Reference Not available
Rock Unit Dolgellau Formation
Biozone Not available
Geological Age

Merioneth Series (Cambrian Period) (485.4 – 499 Ma B.P.)

[Closest ICS interval: Furongian Epoch – Cambrian Series 3 ]


Hughes & Rushton. 1990. Palaeontology p.433-437 pl. 2 fig. 3 1c

Kobayashi. 1935. Jap. Journ. Geol. & Geogr p.52

Lake. 1919. British Cambrian Trilobites. Mon. Palaeont. Soc p.116 pl. 14 fig. 9

Morris, SF. 1988. Review of British Trilobites. Mon. Palaeont. Soc p.38

Salter. 1866. Mem. Geol. Surv p.304 pl.5 fig. 22

Available Images

High resolution photographs


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Steroscopic photographs


5615 KB

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