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Fossil specimen : BGS GSM12441 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Bivalvia

      Order -

Fossil Name Cleionychia incognita Tunnicliff
Type Status Holotype
Name History

Cleionychia incognita Tunnicliff

Ambonychinia cf intermedia Isberg

?Mytilus mytilimeris Conrad

Ambonychia (Inoceramus) trigona Munster

Registration No. GSM12441
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 ]


Hind 1910 Trans Roy So Edm Vol XLVII Part 3 Page 517 [in dispute of Salter]

Portlock 1843 Geol of Londonderry and parts of Tyrone and Fernanagh p.422 pl 23 figs 4, 4a

Reed 1952 Proc Roy Irish Acad 55 B No 3 pl 4 fig 6

Salter 1848 Mem Geol Surv Vol 2 Part I p.365

Tunnicliff 1982 Pal Vol 25 Part 1 p.76-77 pl.12 fig 11

Available Images

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Steroscopic photographs


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3D Scans

1: /BGS/GSM_12441

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