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Fossil specimen : BGS GSM12421 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Bivalvia

      Order -

Fossil Name Deceptrix semitruncata (Portlock)
Type Status Lectotype
Name History

Deceptrix semitruncata (Portlock)

Pectunculus semitruncata (Portlock)

Ctenodonta semitruncata (Portlock)

Registration No. GSM12421
Collector Portlock
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Country Northern Ireland
Locality Desertcreight,Tyrone
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 ]


Hind, 1910, Trans. Roy. Soc. Edinburgh,pt.III,pg. 526 [as Ctenodonta semitruncatus] pl.XLVII

Portlock,1843,Geol.of Londonderry,etc.[as Pctunculus semitruncata] pl.XXXIV,fig. 7

Reed,1952,Proc. Roy. Irish Acad. ,55,B,no.3,op cit pg. 60 pl.III,fig.3

Tunnicliff, 1982,Pal. v. 25,pt.1, pg 55 pl.8,figs.9,12 46

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