GB3D Type Fossils

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Fossil specimen : BGS GSM12416 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Bivalvia

      Order -

Fossil Name Nuculites cylindricus (Portlock)
Type Status Lectotype
Name History

Nuculites cylindricus (Portlock)

Clidophorus cylindricus (Portlock)

Ctenodonta cylindrica

Arca cylindrica

Registration No. GSM12416
Collector Portlock
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Country Northern Ireland
Locality Desertcreight
Grid Reference Not available
Rock Unit Killey Bridge Formation
Biozone Not available
Geological Age

Cautleyan Stage (Ordovician Period) – Pusgillian Stage (Ordovician Period) (447 – 449 Ma B.P.)

[Closest ICS interval: Katian Age ]


Portlock, 1843, Geol.Rep.Londonderry cited, op.cit.p.428 pl.xxxiv, fig.9

Reed, 1952, Proc.Roy.Irish.Acad. vol.55BNo.3, cited p.66

Tunnicliff, 1982, Pal.vol.25, pt.1, p.63 pl.10, fig.1

Available Images

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Steroscopic photographs


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