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Fossil specimen : BGS GSM11480 – Syntype

Taxonomic Group

Kingdom Animalia

  Phylum Brachiopoda

    Class -

      Order -

Fossil Name Colaptomena concentrica Portlock
Type Status Syntype
Name History

Colaptomena concentrica Portlock

Orthis expansa var concentrica Mur

Rafinesquina (Strophomena Auct) expansa Sowerby

Rafinesquina concentrica (Portlock)

Registration No. GSM11480
Collector Portlock
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Country Northern Ireland
Locality Tyrone, N. Ireland
Grid Reference Not available
Rock Unit Bardahessiagh Formation
Biozone Not available
Geological Age

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

[Closest ICS interval: Late Ordovician Epoch ]


Mitchell 1977, Pal. Soc. Mon p.104 22, fig.9

Portlock 1843 Geol of Londonderry and parts of Tyrone and Fernanagh p.452 XXXVII fig. 1

Reed 1952 Proc Roy Irish Acad 55 B No 3

Available Images

High resolution photographs


5410 KB


4282 KB

Steroscopic photographs


5566 KB


4957 KB

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3D Scans

1: bracket /BGS/GSM_11480

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