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Fossil specimen : BGS GSM11951 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Brachiopoda

    Class -

      Order -

Fossil Name Plectatrypa hibernica Reed
Type Status Holotype
Name History

Plectatrypa hibernica Reed

Spirifer curtaena Dalm.

Spirifer cyrtaena Dalm.

Atrypa expansa Lindst.

Delthyris cyrtaena Dal.

Registration No. GSM11951
Collector Portlock
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Country Northern Ireland
Locality Killey, Pomeroy, Tyrone
Grid Reference Available from host institution
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 ]


Mitchell 1977, Mon. Pal. Soc. pg. 124 pl.28,fig.20

Portlock,1843,Geol. Londonderry, etc. as Delthyris cyrtaena Dal. pg. 454 pl. XXXVII,fig. 4

Reed,1952.Proc. Roy. Irish Acad. 55, B, no. 3 pg. 59 pl. III,fig. 2

Available Images

High resolution photographs


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6253 KB

Steroscopic photographs


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3D Scans

1: bracket /BGS/GSM_11951

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