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Fossil specimen : BGS GSM12437 – Syntype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Bivalvia

      Order -

Fossil Name Cleionychia transversa subquadrata (Reed)
Type Status Syntype
Name History

Cleionychia transversa subquadrata (Reed)

Registration No. GSM12437
Collector Portlock
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Country Northern Ireland
Locality Desertcreat, Caradoc
Grid Reference Not available
Rock Unit Caradoc Rocks (Undifferentiated)
Biozone Not available
Geological Age

Caradoc Series (Ordovician Period) (449 – 458.4 Ma B.P.)

[Closest ICS interval: Late Ordovician Epoch ]


Portlock 1843 Geol of Londonderry and parts of Tyrone and Fernanagh p.423 pl 33 fig 3

Reed 1952 Proc Roy Irish Acad 55 B No 3 p.76-77 pl 4, fig 8

Tunnicliff 1982 Pal Vol 25 Part 1 p.73 pl 12 fig 5

Available Images

High resolution photographs


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Steroscopic photographs


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